Wildebeests: A Keystone Species Use the data provided to answer the question below in CER format. Make sure to use at least two pieces of evidence to claim and provide reasoning. FIRE! Fire is actually an important component of savanna ecosystems. Fire kills young trees and seedlings, reducing the number of big adult trees that grow over time. Since trees compete with grasses for light and soil moisture, fire actually helps the grasses and keeps the savannas open. Dr. Rico Holdo, a professor at the University of Missouri, and his colleagues modeled and wrote about the interactions of fire, rain, grasses, trees, and the various animals in the Serengeti. The interactions get complicated quickly, but I’ll try to give you a run-down of how they see fire acting in this ecosystem. First, as I’ve mentioned, fire suppresses trees and encourages grasses. If you have both fire and rain, but no animals, then something interesting happens: the rain encourages the trees, but it encourages the grasses, too. As the grasses get taller, there is more fuel for fire, and the fires become more widespread and more damaging. These fiercer fires really hurt the trees – in fact, the damage from fires (because of more rain) is more important than the extra boost the trees get directly from the rain. So more rain actually means fewer trees. With me so far? We’re now going to throw animals into the mix – well, at least some of the animals. Let’s talk about the grazers. The grazers eat the grass, and this reduces the fuel available to fire. If you have a lot of grazers, like we do in the Serengeti, the grass height is reduced a lot. That means fewer fires and that rain once again helps the trees. Further, many of the grazers are migratory and move around the landscape a lot. They don’t eat the savanna grasses in a neat, tidy, organized way. Instead, they create a patchy mosaic of grass heights, and with those different grass heights come different susceptibility of patches of grass to burn. With rain and fire and grazers, we now have a landscape of grasses of different lengths, patchy fires, and some areas dense with trees and some areas with fewer trees. All that variation means more diversity – more diversity of the grasses, plants, and trees, and more diversity of the animals that rely on them. All that diversity is due, in part, to fire. A Keystone species is a plant or animal that plays an important and unique role in how the ecosystem functions without the key stone species to ecosystem would be very different. One scientist identified Keystone specie it to look as how changes to their abundance (number ) affect other organisms. Often, there are many indirect effects of changes to ecosystems. Claim The wildebeest in the Serengeti are a keystone species. What evidence supports this claim? (Make sure to provide reasoning)
Answers
The data that supports this idea is wildebeest grazing behaviours assist reduce grass height and prevent fire spread.
What reasons are behind wildebeest in the Serengeti?Evidence 1: Wildebeest's grazing behaviour lowers grass height and inhibits the spread of fires. As indicated in the article, grazers like wildebeest eat the grass and minimise the fuel available for flames, which prevents fires from spreading and destroying the trees.
Evidence 2: Wildebeest migration patterns can result in a patchy mosaic of grass heights that influence how susceptible grass patches are to burning. According to the article, wildebeest migrate and produce a patchy mosaic of grass heights. This also means that some areas of the savanna are dense with more trees, while others have fewer trees.
As a result of their grazing practises and migration patterns, which support the preservation of a diversified ecosystem, wildebeest are a keystone species in the Serengeti. In the absence of wildebeest, grass height would rise, resulting in more frequent and destructive fires. The ecosystem's diversity would decline and the effect on the trees would be harmful.
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Related Questions
If the order of the heart is damaged which function of the heart will be affected 1st
Answers
Answer: the aorta
Explanation: The aortic valve helps keep blood flowing in the correct direction through the heart. A damaged or diseased aortic valve can affect blood flow to the rest of the heart and body.
Acid Blank 1 is rain or snow that is more acidic in nature, while acid Blank 2 is dry particles in the air that fall to Earth which are acidic.
Answers
Answer:
Explanation:
Acid Blank 1 refers to rain or snow that is more acidic in nature than normal rain or snow. This occurs when gases in the atmosphere, such as sulfur dioxide (SO2) and nitrogen oxides (NOx), react with water, oxygen, and other chemicals to form sulfuric acid (H2SO4) and nitric acid (HNO3). These acids can then dissolve in rainwater or snow and fall to the Earth's surface, causing acid rain or acid snow.
The main sources of these gases are human activities, such as the burning of fossil fuels in cars and power plants, as well as natural sources like volcanic eruptions. When these gases are released into the atmosphere, they can travel long distances before being deposited as acid rain or snow.
The acidity of acid rain or snow is measured using the pH scale, which ranges from 0 to 14. Normal rain or snow has a pH of around 5.6, which is slightly acidic due to the presence of carbon dioxide in the atmosphere. Acid rain or snow, on the other hand, can have a pH as low as 4.2, which is highly acidic and can cause damage to plants, animals, and infrastructure.
Acid Blank 2, on the other hand, refers to dry particles in the air that fall to the Earth's surface and are also acidic in nature. These particles are known as acid deposition or dry deposition and can include things like sulfur dioxide (SO2), nitrogen oxides (NOx), and ammonia (NH3). Like acid rain or snow, these particles can also be released into the atmosphere by human activities, such as the burning of fossil fuels and agricultural practices, as well as natural sources like wildfires.
When these particles are released into the atmosphere, they can react with other chemicals to form acid particles that can fall to the Earth's surface. These acidic particles can then cause damage to plants, animals, and infrastructure, similar to acid rain or snow.
The impacts of acid deposition can be seen in many areas around the world, including acidification of lakes and streams, damage to crops and forests, and corrosion of buildings and infrastructure. To reduce the impact of acid deposition, it is important to reduce the emissions of sulfur dioxide, nitrogen oxides, and other pollutants into the atmosphere through practices such as using cleaner fuels, reducing energy consumption, and promoting sustainable agriculture.
Acid Blank 1 is rain or snow that is more acidic in nature, while acid Blank 2 is dry particles in the air that fall to Earth which are acidic.
What is Acid Blank 1?Acid Blank 1 is commonly referred to as acid rain, which occurs when sulfur dioxide and nitrogen oxides are released into the atmosphere by human activities such as burning fossil fuels.
These gases react with water, oxygen, and other chemicals in the atmosphere to form sulfuric acid and nitric acid, which then fall to the Earth's surface in the form of acid rain or snow.
Acid Blank 2 is commonly referred to as acid deposition, which includes both dry deposition and wet deposition of acidic substances. Dry deposition occurs when acidic particles and gases settle on the ground or on plants and trees without precipitation, while wet deposition occurs when acidic substances are carried to the ground by rain, snow, or fog.
Acid deposition is also caused by human activities such as the burning of fossil fuels, as well as natural sources such as volcanoes and wildfires.
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The _____ refers to the overarching 1930s legislation that deals with many aspects of the production and sale of farm-raised commodity crops.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Federal Farm Loan Act
Agricultural Act
Sarbanes-Oxley Act
U.S. Farm Bill
Answers
The correct answer is the "U.S. Farm Bill."
What is U.S farm bill?
The U.S. Farm Bill is a comprehensive legislation that is passed by the United States Congress every five to seven years to address a wide range of issues related to agriculture, rural development, conservation, and nutrition. The first Farm Bill was enacted in 1933 during the Great Depression, and since then, it has been amended and revised numerous times to reflect the changing needs of the agricultural sector.
The Farm Bill is a significant piece of legislation that impacts the lives of millions of people across the United States, including farmers, ranchers, consumers, and rural communities. It provides funding for a range of programs, such as crop insurance, conservation, agricultural research, rural development, and nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP).
The Farm Bill also includes provisions related to the production and sale of commodity crops, such as wheat, corn, soybeans, and cotton. These provisions include subsidies and price supports that aim to stabilize commodity prices, promote agricultural production, and ensure a reliable supply of food and fiber.
In conclusion, the U.S. Farm Bill is a crucial piece of legislation that provides support to the agricultural sector and addresses a wide range of issues related to rural development, conservation, and nutrition. Its provisions related to commodity crops are just one of the many aspects of this comprehensive legislation.
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Which statement best explains why none of Queen Victoria’s daughters had hemophilia?
Males with hemophilia must inherit the gene from their father since it is a recessive trait.
Hemophilia is a dominant trait that can only be passed down by the father.
Hemophilia can only be inherited by male offspring.
Females with hemophilia must inherit the gene from both parents to be affected.
Answers
Answer:
The correct statement that explains why none of Queen Victoria’s daughters had hemophilia is: Females with hemophilia must inherit the gene from both parents to be affected.
Hemophilia is a sex-linked recessive disorder, which means it is located on the X chromosome. Males have one X chromosome and one Y chromosome, while females have two X chromosomes. A male who inherits a hemophilia gene on his X chromosome from his mother will have the condition because he does not have a second X chromosome to mask the effects of the gene. However, a female who inherits a hemophilia gene on one X chromosome will not have the condition if her other X chromosome has a normal gene that masks the effects of the hemophilia gene. In other words, a female with only one hemophilia gene is a carrier of the disorder but does not express it.
Therefore, Queen Victoria's daughters, who received one X chromosome from their mother (who was a carrier of the hemophilia gene) and one X chromosome from their father (who did not have the hemophilia gene), did not have hemophilia because they inherited the normal gene from their father that masked the hemophilia gene from their mother.
Explanation:
hope its help <:
Answer:
D. Females with hemophilia must inherit the gene from both parents to be affected.
Explanation:
took the test and got it right
Match them up please
Answers
Answer:
a. Environment - 3. all the conditions surrounding any living organism - the living things and non-living things
b. Habitat - 5. a place where plants and animals live, for example, a pond
c. Population - 1. all the members of a single species living in a habitat
d. Community - 4. a community of animals, plants, and microorganisms together with the habitat where they live
e. Ecosystem - 2. all the populations of different organisms living together in a habitat
Answer:
Let me explain :D
Explanation:
A: Environment will match with #3 because the conditions means that the
B: Habitat would match with #5 because it is where a place a single or several animal(s) lives. (Like its home)
C: Population would match with #1 because it is where all the single species live together.
D: Community will match up with #2 because it is all the different animals living in a habitat, which is a community of animals.
E: Ecosystem will match with #4 because it says where animals, micro-organisms, and plants live together, which means unlike habitat, there are several species living together.
Hope it helped ^^
(Fastest I have answered somebody, which is kind of concerning | > |)
Describe a food chain in detail. Use the teacher notes to help you. Must be 2-4 sentences with a complete description of a food chain and the types of organisms in that food chain. Please check spelling and grammar before submission.
Answers
Answer: A food chain is a succession of organisms, with each organism feeding on the one below it in the chain.
For example, a simple food chain in a forest ecosystem might start with the grasshopper eating grass. The grasshopper is then eaten by a frog and the frog is eaten by a snake. In this food chain, the grass is the producer, the grasshopper is the primary consumer, the frog is the secondary consumer, and the snake is the tertiary consumer. Every organism in the food chain depends on the underlying energy, and energy is transferred from one organism to another throughout the food chain.
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Write one sentence summarizing what the first article said about the topic. Begin yoursentence with these words: According to the USDA, . . . . . or, In the article "The GLASis Half Full," . . . . . )
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The article "The GLAS is Half Full" discusses the challenges and potential solutions for scaling up the Global Lake Ecological Observatory Network (GLEON) to study and understand the ecology of lakes worldwide.
What is lake ecology?Lake ecology is the study of the interactions and relationships between living organisms and their environment in freshwater lakes. This includes the physical, chemical, and biological factors that influence the distribution and abundance of plant and animal species in the lake, as well as the ecological processes that occur within the lake ecosystem, such as nutrient cycling, food webs, and energy flow. Lake ecology also involves the study of the impacts of human activities on lake ecosystems, such as pollution, habitat destruction, and climate change, and the development of management strategies to protect and conserve these valuable resources.
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Cross a Dd^l dinosaur with a dd^d dinosaur.
Use a Punnett square to show your work.
Determine the phenotypic ratio of the potential offspring. Explain the complex inheritance pattern body coloration follows in this species and defend your claim with evidence and reasoning.
(more in picture)
Answers
First, write out the genotypes of the two parent dinosaurs: Dd^l x dd^d. Then, set up a Punnett square as attached. The possible genotypes of the offspring are Dd^l and dd^d, with a 50% chance of each.
How to determine phenotypes?To determine the phenotypes, refer back to the chart. Dd^l is solid dark and dd^d is darker body, lighter extremities. Therefore, the potential offspring could have either a solid dark or darker body with lighter extremities body coloration.
The complex inheritance pattern of body coloration in this species involves multiple genes and is not simply determined by a single gene. This is evident from the chart provided, which shows that body coloration is influenced by several different genotypes.
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Image transcribed:
Directions: Read the following background information. Use it to complete a monohybrid cross between two dinosaurs that could have made your dinosaur.
From their research, the paleontologists who have been investigating this newfound species of dinosaur discovered that the trait of body color was not as simple as just shades of brown vs. shades of greens. Variations in how the colors were distributed into patterns was determined to be a complex inheritance pattern. Refer to the chart below to see which genotypes determine which phenotypes.
Genotype | Phenotype
DD, Dd, Ddd, Dd', DI | Solid dark
LL, LI, Ld^d, Ld', Ld | Solid light
dd, dd^d, d^(d)d^(d) | Darker body, lighter extremities
II, dd', d'd' | Lighter body, darker extremities
DL | Striped
dl, d^(l)l, d^(d)l | Mosaic
d^(d)d | Ombré
Cross a Dd^l dinosaur with a dd^d dinosaur.
Use a Punnett square to show your work.
Determine the phenotypic ratio of the potential offspring.
Explain the complex inheritance pattern body coloration follows in this species and defend your claim
with evidence and reasoning.
help help helppp!
What is the main strategy birds use to maintain their body temperature?
A-using energy from food to keep their bodies warm
B- nesting in warm, sunny location
C- eating warm food on cold days
D- spending the day in the shade of trees
Answers
Birds are endothermic, which means they generate their own body heat. They have a high metabolic rate and generate heat by breaking down food. This heat is then used to maintain their body temperature. To conserve this heat, birds have adaptations such as feathers, which provide insulation, and a high surface-to-volume ratio, which reduces heat loss. Birds can also fluff up their feathers to create air pockets that trap heat close to their bodies.
Plant and animal cells
Answers
What are the differences between plant and animal cells?
Plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells have lysosomes and centrosomes.
Plant cells are eukaryotic cells that contain a cell wall, chloroplasts, and an enormous focal vacuole, while creature cells come up short on cell wall, have little or no vacuoles, and don't contain chloroplasts. The cell wall in plant cells gives extra security and backing, while the enormous focal vacuole stores water and supplements. Chloroplasts in plant cells empower them to create their own food through photosynthesis. Creature cells depend on devouring different living beings for food. Also, creature cells commonly have lysosomes for squander the executives, while plant cells use vacuoles for capacity and reusing. Both plant and creature cells have a core, mitochondria, and different organelles liable for cell capabilities.
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Cyanobacteria, once referred to as blue-green algae, has a fossil record that dates back nearly 3.5 billion years and is among the oldest fossils known. The cyanobacteria/ blue-green algae had cell walls and were photosynthetic. A few hundred years ago, this organism was classified as a plant, then as a protist. Today it is classified in the Eubacteria because it
A) is the ancestor of land plants.is the ancestor of land plants.
B) is photosynthetic.is photosynthetic.
C) has cellulose cell walls and chloroplasts.has cellulose cell walls and chloroplasts.
D) is known to be prokaryotic.
Answers
Cyanobacteria, once referred to as blue-green algae, has a fossil record that dates back nearly 3.5 billion years and is among the oldest fossils known. Today it is classified in the Eubacteria because it is known to be prokaryotic.. Option D is the answer.
Cyanobacteria and prokaryotesCyanobacteria are classified in the Eubacteria because they are prokaryotic organisms. Although they are photosynthetic and have cell walls, they are not classified as plants or protists because they lack many of the complex cellular structures and processes found in eukaryotic organisms. Instead, they are classified in the domain Bacteria, which includes all prokaryotic organisms.
Prokaryotes are unicellular microorganisms that lack a well-defined nucleus and other membrane-bound organelles. They are the simplest and most ancient form of life on Earth, and include the bacteria and archaea. Prokaryotic cells are typically smaller and simpler in structure than eukaryotic cells, which are found in plants, animals, fungi, and protists.
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What was the colour of the leaf after it was boiled in ethanol?
Answers
Answer:
When a leaf is boiled in alcohol like ethanol, it helps to extract chlorophyll and help remove the green color of the leaves. After the removal of chlorophyll, the color of the leaf changes to white, and it is easy to observe the change in the color of iodine as starch gives a blue color to iodine.
Explanation:
which one of the following is not a characteristic of living organisms?
A) the ability to grow and develop
B) the ability to maintain homeostasis
C) the ability to perform photosynthesis
D) the ability to reproduce
Answers
Answer:
C
Explanation:
Humans can't perform photosynthesis, but humans are definitely living organisms
C
Explanation:
I choose C because a living organism is not a plant that grows
HELLO CAN SOMEONE HELP THANK YOU!! 20 POINTS!!
Answers
If someone from another country were to ask you what is it like to be an American? how would you respond?
What do these images means on what is it like to be an American
• America flag
• bald eagle
• oak tree
• America bison
• statue of liberty
• mount Rushmore
• Lincoln Memorial
• great seal of the United States
• US capital
• white house
Answers
Being an American, in my opinion, is living in the land of the free, where individuals may use their liberties without being ecosystem repressed.
What do the symbols used in America mean?The original thirteen colonies are represented by the thirteen stripes. There are as many stars on the flag as there are states in the Union. The formation of a new constellation is represented by stars on a blue background. Red represents bravery and tenacity.
What sort of American iconography is that?A symbol is more likely to be mocked, taken, or transformed the more beloved or well-known it is, whether it be Uncle Sam, the flag, the Statue of Liberty, the dollar sign, Mt. Rushmore, Rosie the Riveter, the Marines at Iwo Jima, or the bald eagle.
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which types of light are absorbed by genetic material
Answers
Answer:
Ultraviolet Light or UV
Explanation:
Ultraviolet Light is beyond the violet in the spectrum, corresponding to light having wavelengths shorter than 4000 angstrom units.
Wavelength are the distance, measured in the direction of propagation of a wave, between two successive points in that the wave that are characterized by the same phase of oscillation.
Ultraviolet (UV) light is a form of radiation that acts as a mutagen, an agent that causes mutations in DNA.
All molecules are made of atoms that are bound together by electric charge. An energetic UV photon can strike an atom in the DNA, transfer some of its energy to the atom and raise that atom’s energy level such that electrons move outward or even leave the atom this breaks the bound in the molecule.
There is nothing magic about UV radiation. Any kind is is energetic radiation can do this but UV is just really common so you are exposed to so much of it.
Fortunately our cells have a way to repair damaged DNA but the repair is not always perfect and if this happens enough times the cell is damaged because the DNA is damaged. If you are VERY unlucky a cell is damaged in just the right way (or “just the wrong way”) so that it can still live but its ability to regulate growth is damaged. We call this “cancer” Skin cancers is actually a “one in a trillion” freak accident but you have billions of cells and that are exposed to trillions of UV photons and after some long number of years that “one in a trillion” freak accident actually happens and a cell is damages in just the wrong place and you immune system some how does not notice and leave it alone.
Please I need help this is For A DRAMA class
For your week three discussion question use the lists of Don’t and Be Careful listed above and pick three moments/scenes from Some Like it Hot (1959) that would have caused an issue in violation of the Hays Code. Your answers should include and will be graded on:
Writing Competency
Document should contain 250 words for the complete assignment.
A detailed example of each of those 3 moments/scenes listing characters and scene involved.
Explain how each particular moment/scene you have chosen would have violated the Hays Code. Be specific and give an example of which Code number would have been involved.
Please do not plagiarize. Remember the Academic Dishonesty section discussed in the syllabus!
Answers
The document regarding the Hays Code is given below.
The rules in the Hays CodeDon't:
"Lower the moral standards of those who see it.""Use offensive language.""Imply any sexual deviancy.""Include excessive or overly passionate kissing.""Depict nudity."
Be Careful:
Three moments/scenes from Some Like it Hot that would have gone against the Hays Code are:
The opening scene where Joe (Tony Curtis) and Jerry (Jack Lemmon) witness a gang massacre while disguised as musicians. The scene features excessive violence, including blood and gunfire, which would have been seen as inappropriate by the Code's emphasis on morality and decency.
Code number: General Principles - 1. No picture shall be produced that will lower the moral standards of those who see it. Therefore, the audience should never be encouraged to sympathize with crime, wrongdoing, evil, or sin.
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How does “junk” DNA assist the process of transcription?
Answers
Answer:
Noncoding DNA does not provide instructions for making proteins. Scientists once thought noncoding DNA was “junk,” with no known purpose
How does a day that is not windy affect the production of electricity?
A. It doesn't have an effect. The wind is endless.
B. Houses or businesses would not be able to use as much electricity on that day.
C. The windmill would produce electricity anyway because it doesn't need the wind to make it turn.
D. Wind cannot be stored. Alternative power sources would have to be used.
Answers
Answer:
a i think
Explanation:
Which of the following terms describes a type of radiation that reaches the Earth from the Sun?
Answers
There are three types of radiation that reach the earth from the sun there is direct solar radiation, diffuser solar radiation, and reflected solar radiation.
the description of types of radiation:
Direct solar radiation:
The radiation rays or beam which reach the earth's surface without being diffused is called direct solar radiation. the sum of direct solar radiation and diffused solar radiation is called global radiation.
direct solar radiation can be decreased due to atmospheric conditions the radiation can be reduced to 10% on a clear day, or dry day and can be 100% on cloudy or thick days.
Diffuser solar radiation:
The radiation ray or beam reaches the earth's surface after passing through multiple deviations in its trajectory. in this, the radiation of the sun is scattered by the atmosphere constituents or by the surface of the earth
Reflected solar radiation:
The radiation in which the beam or rays of light is reflected back by the earth's surface in a phenomenon is called reflected solar radiation
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About 60% of the human body is made up of protein. True or false?
Answers
Answer:
False
Explanation:
While protein is an important component of the human body, it does not make up 60% of the body's mass. The actual percentage of protein in the human body varies depending on factors such as age, sex, and body composition, but it generally ranges from 12% to 18%. Other major components of the human body include water, fat, and minerals.
What are the financial costs of climate change, and how can we lessen them?
Answers
Explanation:
Climate change has various economic costs that affect different sectors of the economy. These costs include physical damages from extreme weather events, loss of biodiversity and ecosystem services, reduced agricultural productivity, increased health care costs, and rising sea levels.
The financial costs of climate change are likely to increase significantly in the coming decades, with estimates indicating that the global economy could lose trillions of dollars by 2100. However, these costs are difficult to quantify precisely because they depend on a wide range of factors, including the severity of climate change impacts, the speed of mitigation efforts, and the adaptation measures taken.
To lessen the financial costs of climate change, it is essential to reduce greenhouse gas emissions and implement adaptation measures. Here are some ways to achieve this:
Implement carbon pricing: By putting a price on carbon emissions, we can encourage businesses and individuals to reduce their carbon footprint and transition to cleaner energy sources.
Invest in renewable energy: Investing in renewable energy sources, such as wind, solar, and geothermal power, can reduce our dependence on fossil fuels and help mitigate climate change.
Encourage energy efficiency: Improving energy efficiency in buildings, transportation, and industry can significantly reduce greenhouse gas emissions.
Implement adaptation measures: Building more resilient infrastructure, such as sea walls and flood barriers, can help protect communities from the impacts of climate change.
Promote sustainable land use: Sustainable land use practices, such as reforestation and sustainable agriculture, can help reduce greenhouse gas emissions and enhance carbon sequestration.
Encourage international cooperation: Climate change is a global issue that requires a collective effort to address. Encouraging international cooperation and collaboration can help reduce the financial costs of climate change and mitigate its impacts.
By implementing these measures, we can work towards mitigating the financial costs of climate change while protecting the environment and ensuring a sustainable future for generations to come.
modified viruses can be used to introduced to modify genes into human cells true or false 
Answers
Answer:
True. Modified viruses can be used as a tool to introduce desired genes or modifications in human cells, a technique known as gene therapy. However, this is a highly specialized field and must be performed under strict laboratory conditions by trained professionals to ensure safety and efficacy.
Can someone help me label this diagram of the fluid mosaic model please
Answers
Answer:
A) Integral/transmembrane proteins
B)Glycoprotein
C)Glycolipid
D) cholesterol
E)Phospholipid Bilayer
If black fur is dominant over white fur, how would heterozygous parents breed a grey fur offspring? (Many Generations can be used)
Answers
In mice, the alleles for white fur (FW) and black fur (FB) co-dominate. When both alleles are present, the mice will then have black or white speckled fur.
What is an example of heterozygosity?You have a genetic mutation for that gene if the two methods differ from one another. For instance, having one gene for red hair or one allele for brown hair could indicate that you are heterozygous for hair color. The expression of certain features is influenced by the interaction between the two alleles.
How do homozygous and heterozygous differ?Each gene has two alleles, or variations, in each of us. When two identical copies of a gene are present, you are said to be homozygous for that gene. It contrasts with a heterozygous genotype, in which the alleles are distinct.
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What are three ways humans impact Lake Tahoe?
Answers
These two nutrients have become unnaturally abundant in the lake because of human caused (anthropogenic) disturbances. The primary anthropogenic sources are accelerated erosion, fertilizer use, car exhaust, and urban runoff.
Answer:
1). overbuilding around the lake
2). Many polluted streams
3).too much mining
Select the statements from the list below that accurately describe natural resources.
O A. Natural resources include only nonliving things.
O B. Obtaining natural resources has little or no impact the environment.
O C. Many natural resources exist in limited amounts.
O D. Some natural resources are being used much faster than they are being replenished.
O E. Past geologic processes, like plate tectonics, determined where many natural resources are
found today.
O F. The same natural resources can be found everywhere if one searches hard enough.
O G. Synthetic materials, like plastics, are not made from natural resources.
O H. Some natural resources take millions of years to form.
O L. Obtaining natural resources is easy.
O J. Finding, extracting, and using natural resources always have some costs of some kind.
Answers
Statements C. Many natural resources exist in limited amounts, D. Some natural resources are being used much faster than they are being replenished, and H. Some natural resources take millions of years to form accurately describe natural resources.
What are natural resources?The expression natural resources refer to certain features of nature that allow us to be used with an objective, in particular, such as the water bodies to generate energy.
Therefore, with this data, we can see that natural resources can be used to generate energy or also to obtain food.
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I need help with a question, can someone solve it for me?
Why does the earth experience high tides?
A. High tides occur because the comet Neowise passed by Earth
B.The earth experiences high tides because the gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
C.High tides occur because Jupiter is in alignment with Saturn
D.This causes areas of water that bulge away from the earth.
Answers
Answer:
B.The earth experiences high tides because the gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
Explanation:
How are speciation and reproductive isolation similar and different?
Answers
Answer:
Look below
Explanation:
Reproductive isolation represents a breakdown in the ability to reproduce successfully with sexual partners of another type of organism, and speciation requires a build up of reproductive isolation between diverging types of organism until gene flow is sufficiently rare or ineffective that the entities are considered
There is evidence that eukaryotic cells would have evolved from a symbiosis (organisms that help each other), that is, primitive bacteria would have been phagocytosed by an ancestral eukaryotic cell and both would have lived well as collaborators. Based on this information, write a text summarizing how, supposedly, animal and plant eukaryotic cells would have arisen. In the text, the following keywords should appear: unicellular, cell wall, oxygen in the atmosphere, heterotrophic and anaerobic prokaryotic, photosynthetic bacteria, endobiosis, mitochondria, chloroplasts
Answers
According to the endosymbiotic theory, eukaryotic animal and plant cells arose from the fusion of a heterotrophic and anaerobic prokaryotic single cell with photosynthetic bacteria in a process called symbiosis.
Endosymbiotic TheoryIn this theory, the phagocytosed bacteria would have become the mitochondria, responsible for cellular respiration, while the photosynthetic bacteria would have become the chloroplast, responsible for photosynthesis.
With the presence of these organelles, eukaryotic cells began to have greater energy efficiency and became more complex, developing organelles such as the endoplasmic reticulum and the Golgi complex. The appearance of oxygen in the atmosphere allowed the formation of the ozone layer, which allowed the emergence of multicellular organisms with cell walls, such as plants.