None of the listed options are correct.
Normal covalent bond formation between nonmetals produces molecules like water (H2O), methane (CH4), and carbon dioxide (CO2).
What is a covalent bond?When atoms share one or more pairs of electrons to become more stable, they form a sort of chemical relationship known as a covalent bond. Covalent bonds can be found in a variety of compounds, including water, methane, and DNA. They mainly develop between nonmetal atoms like carbon, oxygen, and nitrogen. The positively charged nuclei of both atoms are drawn to the shared electrons in a covalent connection, forming a solid bond between them. The number of shared electrons and the separation between the two nuclei affect the bond's tensile strength. The structure and operation of many biological molecules, including proteins and DNA, depend on covalent bonding.learn more about covalent bond here
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Answer:
proteins
lipids
Explanation:
I took the quiz
Which statement is the best description of how the heart delivers oxygen to the body cells?
The heart breaks down carbon dioxide into carbon and oxygen.
The heart pumps oxygenated blood to the body cells.
The heart take oxygen from the air.
The heart pumps air throughout the body, delivering it to the cells.
Answer:
Explanation:
The statement that best describes how the heart delivers oxygen to the body cells is: "The heart pumps oxygenated blood to the body cells." The heart's main function is to circulate blood throughout the body. The blood that the heart pumps to the body contains oxygen, which is used by the body cells for energy. The heart receives deoxygenated blood from the body, pumps it to the lungs to be oxygenated, and then pumps it back to the body to supply the cells with oxygen. Therefore, the heart's role is to deliver oxygenated blood, not air, to the body cells. The heart does not break down carbon dioxide into carbon and oxygen; this process occurs in the lungs during respiration.
Drag and drop to match the correct mitosis phase name and description to the
corresponding image that shows the cell in that stage of cell division.
DNA condensing. In
addition, the nuclear
envelope just begins
to break down
The nuclear
membrane is gone.
The chromosomes
line up in the center.
Centrioles move to
opposite ends of cell.
2
Sister chromatids are
pulled apart by
microtubules.
3
The nuclear
membrane reforms
around the
chromosomes,
chromosomes begin
to unwind and
spread out again.
4
Telophase
Prophase
Anaphase
Metaphase
Match the correct mitosis phase name and description to the corresponding image that
shows the cell in that stage of cell division.
Answer:
Explanation:
Prophase - DNA condensing. In addition, the nuclear envelope just begins to break down.
Metaphase - The chromosomes line up in the center. Centrioles move to opposite ends of the cell.
Anaphase - Sister chromatids are pulled apart by microtubules.
Telophase - The nuclear membrane reforms around the chromosomes, chromosomes begin to unwind and spread out again.
Help pls! which layer of the atmosphere is the highest an airplane can fly?
Answer:
Stratosphere
Explanation:
it's correct, trust me lol
What would be the outcome if U.S. agricultural policy changes and we move toward more pasture-raised livestock?
Meat would be less expensive.
Meat would be more plentiful.
Meat would be more unhealthy to consume.
Meat would be more expensive.
If U.S. agricultural policy changes and moves toward more pasture-raised livestock, it is likely that meat would be more expensive. Therefore the correct option is option D.
While some consumers believe that pasture-raised meat is healthier and more sustainable, it usually commands a higher price due to the additional costs involved with production. This could make it more difficult for some consumers to purchase meat, or it could lead to a shift towards plant-based diets.
It is important to note that the other options presented are not always true predictors of a shift towards more pasture-raised livestock.
Meat, for example, may not be more plentiful or less expensive in this scenario due to a variety of variables such as consumer desire, market conditions, and government policies. Therefore the correct option is option D.
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Please answer and help for number 16. And explain your answer A,B,C or D
Answer: I have no clue if I'm right but B. Conditions in the environment favor purple lupines.
Explanation:
It seem that the purple ones thrive better in that eco system.
I'm so sorry if I'm wrong!
Which characteristic best explains people having a stable internal body temperature?
A. Homeostasis
B. Cellular Organization
C. Adapt through Organization
D. Heredity
Answer:
The answer is homeostasis
I learned this in my Anatomy and Physiology class and homeostasis is a internal environment (in our body) that is able to stabilize
Please help on this fast
Predator populations are expected to be affected by the rise in the proportion of light moths brought on by the presence of lichen on trees.
While the number of birds may initially decline, natural selection may eventually favor birds with better vision or those that can adapt to hunting alternative types of prey.
The most likely outcome for predator populations is that they may alter their hunting techniques or look for alternative food sources, thereby changing the dynamics of both predator and prey populations.
Natural selectionIn this case, the most likely outcome for predator populations is that birds may alter their hunting tactics or look for alternative food sources.Birds that predominantly hunt dark moths will have a harder problem finding food after the proportion of light moths reaches almost 100%. When the birds adjust to the new environment, this can cause a temporary decline in bird populations. Yet over time, natural selection can favor birds with a stronger vision since they can find and catch the surviving black moths more easily.As an alternative, birds may alter their hunting techniques and look for different types of prey, including insects that are not disguised by the tree bark.learn more about Natural selection here
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Compare grasslands and deserts with respect to the type of plants and animals found in each.
PLS HELP I GIVE BRAINLIEST
Fill a clear bin (shoe box size works best) about half way with dirt. The dirt can be from outside or a garden supply store.
Lightly moisten the dirt by sprinkling water over it.
Place about 5 worms in the bin. The worms can be dug up from outside or from a bait store.
Observe the worms, in a period of 2,5,10 minutes and 1 and 2 days
What do the worms do when first placed in the dirt.
After 2 minutes where are the worms?
After 5 minutes where are the worms?
After 10 minutes where are the worms?
When you return after one day what do you notice?
When you return after two days what do you notice?
When first placed in the dirt, the worms may burrow into the soil or crawl around on the surface.
Exploration.
Less crawling around.
Motionless on the soil.
Tunnel creation.
Visible casting.
What are the likelihoods of worm behavior?After 2 minutes, the worms may still be exploring their new environment or starting to burrow deeper into the soil. After 5 minutes, the worms may have burrowed deeper into the soil or be crawling around the surface less frequently. After 10 minutes, the worms are likely to have burrowed deeper into the soil or remain motionless on the surface.
When returning after one day, you may notice that the worms have created tunnels in the soil and have consumed some of the organic matter in the soil. They may also have deposited their castings, which are rich in nutrients. When returning after two days, you may notice that the worms have continued to create tunnels and consume organic matter, and their castings may be more visible.
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Which substances are MOST likely made of the same material? -( Info in photo)
Select one:
a.
1 and 3
b.
1 and 4
c.
2 and 3
d.
2 and 4
Answer:
B. 1 and 4
Explanation:
The mass of 1 is 15.6 and 4 is 18.6. The volume of 1 is 7.78 which is close to 4(5.31). The shape of both of them are rectangles whereas there are no other matching shapes. They are both smooth, but that makes it alittle bit hard, because they are all smooth. Although the reaction to light is not the same, so that makes it a little hard as well.
Hope this helps...
Can someone help me out with the ones labeled 1,2,3 please :)
The options for the answers are :
• Plasma
• Lymph
• Cells
• Erythrocytes,Leucocytes and
platelets
• 90%
• 80%
• 20%
• 10%
Answer:
1- Cells
2- 90%
3- 10%
Explanation:
I'm pretty sure thats right?
which phylogenetic tree best represents the information in the chart
A phylogenetic tree that best represents tabular information is a cladogram.
Which phylogenetic tree best represents the information in the table?A cladogram is a cladogram that shows the evolutionary relationships between different species. In this case, four amino acids can be represented by four branches on the cladogram. Each branch can represent a different species, with four amino acids serving as nodes along the branch.A phylogenetic tree can be constructed such that the amino acids of the nodes closest to the root (base of the tree) are shared by all three of her species. This indicates that these are the most primitive amino acids and were present in the common ancestor of all three species. As the branches recede from the root, they represent amino acids unique to each species.This suggests that these amino acids evolved in the species after splitting from a common ancestor.This cladogram helps scientists distinguish between closely related and distantly related species. For example, two species are closely related if they share the same amino acid at a particular node in the cladogram. If two species have different amino acids at the same node, they are more distantly related. This family tree is a visual representation of the evolutionary relationships between different species based on the amino acids they contain.For more information on phylogenetic tree kindly visit to
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Complete question : the following data shows four amino acids found across three species. which phylogenetic tree best represents the information in the chart?
Name two important roles played by fungi in nature
As of 2017, the use of antibiotics in CAFOs are prohibited for:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
enabling growth enhancement.
increasing fertility.
slowing the progression of viruses.
treating bacterial infections.
Answer: enabling growth enhancement.
Explanation:
As of 2017, the use of antibiotics in CAFOs (Concentrated Animal Feeding Operations) are prohibited for enabling growth enhancement.
3. What muscle is known as the calf muscle?
O rectus femoris
O internal oblique
O tibialis anterior
O gastrocnemius
gastrocnemius
Explanation:
Your calf muscle consists of two main muscle the gastrocnemius and the soleus. Because these two muscles come together above your heel and attach to the Achilles tendon, some providers refer to the gastrocnemius and soleus as one large muscle with two sections.
14. Most of the diseases that damage corals are brought on by.
stress
salt content
large fish
the sun
Most of the diseases that damage corals are brought on by stress. Stress factors that can harm corals include increases in water temperature, pollution, physical damage, and changes in salinity or acidity levels.
Compare and contrast genetic and epigenetic changes.
Genetic changes and epigenetic changes are two different types of modifications that can occur in an organism's DNA. Here's a comparison and contrast between the two:
What is genetic change?Genetic changes refer to changes in the DNA sequence itself. These changes can occur through several mechanisms, including mutations, recombination, and transposition. Genetic changes can have a significant impact on an organism's traits, including its physical and behavioral characteristics, susceptibility to disease, and more. Genetic changes are permanent and heritable, meaning that they can be passed down from one generation to the next.
What is Epigenetic changes?Epigenetic changes refer to modifications that occur to the DNA molecule or its associated proteins that affect gene expression without changing the underlying DNA sequence. Epigenetic changes can be passed down from one cell to another during cell division, and some can even be passed down from one generation to the next.
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During June, the northern hemisphere experiences summer and the southern hemisphere experiences winter. During
December, the northern hemisphere experiences winter and the southern hemisphere experiences summer.
Why do the two hemispheres experience opposite seasons at the same time?
A) Earth is closer to the Sun during June and farther from the Sun during December.
(B The equator receives more sunlight than the northern and southern hemispheres.
C) The tilt of the axis causes the two hemispheres to receive different amounts of sunlight at different times of the year.
D) The Earth orbits more slowly in June causing the sun to shine brighter during the summer months than during the winter
Answer: C
Explanation:
Because the tilt of the earth on its access causes one half of the earth to get more direct sunlight because its pointed right at the sun while the other half is getting non direct sunlight making it colder in that part.
What does this sentence mean?
“Extinction events, of course, result in loss of species. At the same time, however, they also encourage different species to evolve.”?
Mass extinction. This reduces the amount of competition for resources and leaves behind a large number of empty niches, which are then filled by surviving lineages.
Therefore, the extinction of dinosaurs such as T. rex and Brontosaurus about 65 million years ago would be unremarkable without the reality that they ate over half of all plants and animals that were present at that point. were alive at the same time perished in what scientists refer to as a mass extinction. Mass extinctions occur when large numbers of species are removed from their respective ecosystems in a relatively short amount of time.
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8. Metamorphic rocks are created through a change in the rock's original structure.
A. What are three types of change that occur in the process of metamorphism? (3 points)
B. What happens to the rock structure during each of type of change? (6 points)
A. Three types of change that occur in the process of metamorphism are:
RecrystallizationNeometamorphismDeformationWhat are the changes that occur in the rock structure?B. The changes that occur in the rock structure during each type of metamorphism are:
Recrystallization: This involves the growth of new crystals within the rock, while retaining the same mineral composition. During this process, the original crystal structure may be destroyed, and new crystals may form in a more tightly packed, interlocking arrangement. This type of metamorphism is common in sedimentary rocks, such as limestone, where the original mineral grains may be broken down and replaced by new crystals of calcite.
Neometamorphism: This involves the formation of new minerals from the original minerals in the rock. The temperature and pressure conditions during this process may be high enough to break down the original minerals and form new ones. This type of metamorphism is common in rocks that have been subjected to regional metamorphism, such as schist.
Deformation: This involves the physical alteration of the rock due to stress and pressure. The rock may be folded, faulted, or sheared, leading to a change in its shape and structure. During this process, the original mineral composition and texture of the rock may be preserved, but its physical structure will be altered. This type of metamorphism is common in rocks that have been subjected to intense tectonic forces, such as foliated metamorphic rocks like gneiss.
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Two pea plants that are heterozygous for both pea color and shape are crossed. What is the expected genotype ratio of their offspring
Answer: 3:1
Explanation:
Some membrane proteins use energy to increase the concentration of
hydrogen ions on one side of the membrane. By which type of transport are
the hydrogen ions able to become more concentrated?
• A. Facilitated diffusion
• B. Exocytosis
• C. Active transport
• D. Osmosis
Answer:
the correct answer is option C, active transport.
Explanation:
Why human plunged are not equal ?
There are several reasons why human lung capacities may not be equal. Some of these reasons include:
Genetics: Lung capacity can be influenced by genetics, as lung size and shape are partially determined by genes.
Gender: Men generally have larger lung capacities than women due to differences in body size and muscle mass.
Age: Lung capacity tends to decrease with age, as the lungs become less elastic and lose some of their ability to expand.
Lifestyle: Smoking, pollution exposure, and other lifestyle factors can damage the lungs and decrease lung capacity.
Disease: Certain lung diseases, such as asthma, emphysema, and chronic bronchitis, can reduce lung capacity.
It's worth noting that while human lung capacities may not be equal, healthy lungs can still provide adequate oxygen to the body. It's important to maintain good lung health through regular exercise, avoiding harmful substances, and seeking medical attention for respiratory problems.
what impact is climate change having on agricultural productivity?
Explanation:
Climate change is having a significant impact on agricultural productivity. Changes in temperature and precipitation patterns are affecting crop yields, water availability, and soil quality, all of which are critical for agricultural productivity.
One of the most significant impacts of climate change on agricultural productivity is through extreme weather events such as droughts, floods, and heatwaves. These events can destroy crops, reduce yields, and cause soil erosion, which can have long-lasting effects on productivity.
Higher temperatures can also negatively impact crop growth and development. For example, heat stress can cause reduced seed quality, decreased pollination, and lower yields. Increased carbon dioxide concentrations, which are a result of climate change, can have a fertilization effect on some crops, but this effect is likely to be offset by other negative impacts, such as water stress and increased pest pressure.
Changes in precipitation patterns, such as more frequent and intense rainfall events, can also impact agricultural productivity. Heavy rainfall can cause soil erosion, reduce soil fertility, and make it difficult to plant and harvest crops.
Overall, the impact of climate change on agricultural productivity is complex and varies depending on the crop, region, and type of agriculture. However, it is clear that without action to mitigate and adapt to the impacts of climate change, agricultural productivity is likely to decline in many regions, with serious implications for food security and livelihoods.
_____ involve(s) many meat or dairy animals reared in confined spaces, maximizing the number of animals that can be grown in a small area.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Animal containment strategy
Monoculture maximization facilities
Concentrated animal feeding operations
Livestock concentration zones
Answer: Concentrated animal feeding operations
Explanation: Also known as CAFO is a specific type of industrial agriculture facility that raises animals normally at a high density for the consumption of meat or other products.
Which of the following events takes place during the mitotic phase of the cell cycle?
O Duplication of DNA
Duplication of
DNA
Duplication of
centrioles
Which of the following events takes place during the mitotic phase of the cell cycle?
Separation of Chromosomes
Duplications of centrioles
Division of Cytoplasm
Separation of
chromosomes
Division of
cytoplasm
The events that takes place during the mitosis are separation of chromosomes, duplication of centrioles, division of cytoplasm, separation of chromosomes and division of cytoplasm.
Phases of mitosisThe majority of the cell's life is spent in the interphase, just before prophase, where mitosis's start-up is prepared for (the DNA is copied). The prophase is technically the first phase of this process, though, because the actual process requires the division of the nucleus. The duplicated chromosomes are aligned, separated, and transferred to the cell's opposite poles during the multistep mitotic phase, after which the cell divides into two brand-new, identical daughter cells.The cell divides its cytoplasm and divides its DNA into two sets during the mitotic (M) phase to produce two new cells.For more information on mitosis kindly visit to
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what is intersectionality?
Answer:
the interconnected nature of social categorizations such as race, class, and gender as they apply to a given individual or group, regarded as creating overlapping and interdependent systems of discrimination or disadvantage.
Explanation:
using a simple food chain what is the order or sequence of energy transfer
Answer:
Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next.
Answer:
grass → grasshopper → lizard → snake
Explanation:
The order of energy transfer is from the producer (plants) to the primary consumer (grasshopper), to the secondary consumer (lizard) and finally to the tertiary consumer (snake)
Just as she answered.
The longer the poly a tail in general the longer a messenger RNA will survive in the cytoplasm true or false 
Answer:
True. The poly(A) tail at the 3' end of messenger RNA (mRNA) protects it from degradation by exonucleases and helps to promote mRNA stability and translation efficiency in the cytoplasm. The longer the poly(A) tail, the more protection it provides and the longer the mRNA will survive.
When adjusted for inflation, cattle sell for _____ price they sold for during:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
roughly the same; World War II.
roughly the same; the Great Depression.
less than the; the Civil War.
less than the; the Green Revolution.
Lower than the American Civil War cattle are now sold for less than they were during the Civil War after accounting for inflation.
What kind of inflation predicts that if the cost of a production factor rises, so will the cost of goods?Production costs rise as a result of rising domestic or foreign input prices. Firms often produce less output and increase the prices of their goods and services as a result of rising production costs per unit of output.
Which form of inflation is brought about and kept alive by an excessive overall demand for goods and services?Demand-pull inflation explains price increases as the outcome of a greater overall demand that outpaces supply in an economy.
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