Answer:
Many students believe that the physical characteristics of organisms change in response to changes in the environment in which the organisms live, and that these changes are passed on to future generations. For example, there is widespread belief that, over many generations, giraffes have gradually developed longer necks as they competed with other animals and each other to reach higher and higher leaves on trees for food.
Many students also believe that organisms can deliberately develop new traits in order to improve their chances of survival. As an example, students believe that moths with spotted wings are able to change the color and patterns on their wings so they are better camouflaged among tree trunks that may have become darker from pollution from industry. Many students also believe that repeated use of insecticides like DDT has meant present populations of insects have become
Explanation:
Ritika observes that her father before storing the grains always dries them
under the Sun. What is the likely reason for this activity?
(a) To keep the grains warm.
(b) To increase the size of the grains.
(c) To prepare the grains for germination.
(d) To reduce the moisture content of the grains.
Answer:
to reduce the moisture content of the grains.
What is the difference in a scientific fact, observation, and inference? (Be able to identify all 3 from an example.)
1- Scientific fact.
The definition of a scientific fact is some how different from the definition of fact, as it implies knowledge. A scientific fact is the outcome of a repeating careful observation or measurement by experimentation or other means which is also known as empirical evidence. These are the parts or steps to create a scientific theories. Various forms of observation and measurement progressed to fundamental questions about the scientific method, and the scope and validity of scientific reasoning.
2- Observation
Observation is the active form of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the scientific and recording of data via the use of scientific instruments.
3- Interference
Interference is what happens when two or more waves meet each other and it is totally Depend on the alignment of peaks and troughs of the overlapping waves, they might add up, or they can partially or entirely cancel each other.
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Which would be considered a reliable source?(1 point)
an opinion column in your favorite magazine
an opinion column in your favorite magazine
an article from a scientific journal
an article from a scientific journal
a blog written by an anonymous author
a blog written by an anonymous author
a biology textbook from 1920
The source that is considered reliable is an article from a scientific journal.
An article that is considered a reliable source is that article that has undergone a thorough review by academic scholars.
A typical example of such articles are found in scientific journals.
Articles from a scientific journal are known to be from a reliable source because:
the author must have cited studies or other sources to be considered valid and reliablethe author must have done some research to provide evidence and name the sources they use.the authors work is usually peer reviewed from time to time.the articles in scientific journals cannot be altered by anyone except the original authors.Therefore, the source that is considered reliable is an article from a scientific journal.
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How would Charles Darwin account for the diversity of living things
Answer:
Darwin's experience as a naturalist aboard the H.M.S. Beagle exposed him to the many living organisms distributed throughout South America. ... From these observations, Darwin determined that species did not arise independently; rather species are descendents of other species.
Explanation:
state two benefits of sage and two of its side effects
Answer:
Benefits of Sage
1.Relieving headache and sore throat pain.
2.Reducing oxidative stress in the body.
Side effects
.If consumed in excess, sage can trigger potentially serious side effects, including restlessness, vomiting, dizziness, rapid heart rate, tremors, seizures, and kidney damage. Sage essential oil is especially toxic, causing adverse symptoms with as few as 12 drops.
How are the workings of receptor in human body related to the sensors in a car listed below?
Light, Touch, Sound, Speed
I don't
Explanation:
know sorryyyyyyyyyyyy
How do bacteria and archea reproduce most of the time?
A. asexually
B. sexually
C. chemical combustion
D. all 3 equally
Most of the time bacteria and archea reproduce by asexually .
Answer:
Most bacteria and archea reproduce asexually.
Explanation:
John wants to test how temperature affects the mass of sugar that can be
dissolved in water. Which of the following factors must be the same between
the control group and the experimental group?
A. The mass of the sugar
B. The temperature of the water
O C. The volume of the water
O D. The time of day
SUMIT
Answer
the mass of the sugar
plz help
name the parts of the virus labeled x and y
Answer:
X is matrix protein
Y is RNA genome
i hope it was helpful!
Explanation:
I WILL GIVE BRAINLIEST
(I) predict which of the liquids would cause the largest decrease in made of a potato stick.
(ii) The students dried the potato sticks with paper towels before putting them on the electronic balance
Suggest why.
Explanation:
(l) 0.1 mol per dm3 sodium chloride solution can cause the largest decrease in the potato stick
2. An injury that affects a ligament rather than a bone is likely to be examined using
a, magnetic resonance imaging,
b. Xays.
c, computer modeling,
d. transmission electron microscopy,
Answer:
magnetic resonance imaging
Explanation:
this is the right answer
Just a easy question .....
I want to see who can answer the faster and brainiest
Differences between duck and peacock
(Please don't spam ) Answer quickly please
Answer:
Duck is smaller whereas peacocks are big
Duck has black\brown features whereas peacocks have colorful feathers.
Choose something about that a scientist may want to learn about a newly discovered species of dinosaurs
Answer:
A scientist might want to know their DNA
What explains why certain dead organisms in the past were not fossilized?
Answer:
They may not have skeletons, their body/bones were destroyed underground, the earth around them wasn't the correct type of rock, etc.
Explanation:
Only a small percentage of organisms are ever fossilized, and can only be fossilized under specific circumstances.
What is a characteristic of "bad" science?
O Experiments with controlled variables
O Studies with unbiased results and analysis
O Replicable experiments for all scientists
O Studies with results that cannot be repeated
Answer:
Explanation:
A B and C are all OK. They are the mark of good science. The one that is not is D.
No replication, no credit for work.
why honeybee are called social insect
Explanation:
Honey bees are social insects because they live together in large, well-organized family groups. A single honeybee cannot grow or survive by itself. The three distinct kinds of honeybees in a colony are queen, worker, and drone.These all bees work together for their survival.
Answer:
Honey bees are social insects because they live together in large, well-organized family groups. A single honeybee cannot grow or survive by itself. The three distinct kinds of honeybees in a colony are queen, worker, and drone.
Explanation:
Help me with this question plzz!
Labeo = gills
Dolphin= pisces
Tadpole = hibernation
snake= internal fertilization
Eagle = aerial mode of life
Human = mammals
What animal is the dominant species in Yellowstone National Park?
Answer:
Janwar mein Bharat ka pahla Janwar kya ki prasiddh mukhe Ajmer mein iski Khoj
Which would be least helpful in reducing indoor pollution?
Answer:
A fan probably would be least helpful because it would spread the dust, hair etc, around rather than removing it.
Explanation:
What are the parts of an bacteria
Answer:The numbered parts are: (1) pilus, (2) plasmid, (3) ribosome, (4) cytoplasm, (5) cytoplasmic membrane, (6) cell wall, (7) capsule, (8) nucleoid, and (9) flagellum (Source: LadyofHats [Public domain] via Wikimedia Commons). One of the most important structures of a bacterial cell is the cell wal
Explanation:
A DNA strand has the sequence ATCGGC. Which is the complementary strand of DNA?
Explanation:
TAGCCG
For such problems you need to get the other base that would pair with the given one.
But note : you need to be careful not to confuse with the complimentary base pairs of RNA.
Question 5 Multiple Choice Worth 4 points)
(03.02 MC)
The immediate result after DNA replication are
one old strand that came back together after replication and one completely new strand that was just assembled
O two completely new strands of DNA
O three strands of DNA, one old and two new
O two strands of DNA that each contain one strand of the original DNA molecule
Answer: C
Explanation:
Two strands of DNA that each contain one strand of the original DNA molecule.
The correct option is C.
Where Is DNA Found?A tiny quantity of DNA is also found in the mitochondria, where it is known as mitochondrial DNA, while the bulk of DNA is found in the cell nucleus, where it is known as nuclear DNA. Organelles such as mitochondria called mitochondria transform the energy from food into the a form that can be utilized by cells.
What is the main function of DNA?The instructions required for a creature to grow, endure, and reproduce are encoded in its DNA. Dna fragments must be transformed into messages that can be utilized to create protein, which are the protein complexes that carry out the majority of the work in our bodies, in order to perform these activities.
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The complete question is -
The immediate result after DNA replication are one old strand that came back together after replication and one completely new strand that was just assembled
A- Two completely new strands of DNA
B- Three strands of DNA, one old and two new
C- Two strands of DNA that each contain one strand of the original DNA molecule
Why are glands needed in the male reproductive system
Answer:
Because they are essential for physical and mental development of a body.
Which of these is a benefit of using wind over nonrenewable sources of
energy?
A. Wind energy is cleaner than fossil fuel energy.
B. Wind energy is less developed than fossil fuel energy.
C. Wind turbines can produce noise pollution.
O D. Wind turbines can harm local wildlife, such as birds.
Answer:
A. Wind energy is cleaner than fossil fuel energy.Explanation:
We use the windmill for this only to utilize the wind energy as it is much cleaner fuel than the fossil fuel and can be renewed very easily.
Without the presence of enzymes, the reactions necessary to sustain life would require..
Answer:
higher temperatures
Explanation:
Help Dr. Limpkin design an experiment to test this hypothesis. (Be sure you can explain how you are going
to conduct the test and predict what the results will be if they support the experiment.) You are not to create
the data for your results section.
Hi, you've asked an incomplete question. Here's the missing passage reads:
"Honeybees play an important role in agriculture, by pollinating at least 90 different species of food plants, worth about 15 billion dollars in the U.S. alone. As a result, beekeeping or apiculture is a multi-million dollar business. However, over the last year, honey bee populations are crashing (Colony Collapse Disorder) with hives dying off in less than a week, without an obvious cause. Ian Lipkin a senior researcher in the Epidemiology (infectious disease) Department of Columbia University's Mailman School of Public Health believed the cause to be a pathogen (virus, bacteria, or fungus) of some sort. Use the information given to answer the following questions."
Design an experiment to test this hypothesis:
Need to remember, when we say experiment it basically means a scientific procedure carried out to test a hypothesis. While the word hypothesis refers to a question or assumption to be tested.
Hence, an experiment could involve selecting few groups of honeybees in the same location with the purpose of exposing each individual group to pathogens and different viruses and bacteria in other to observe if there are any trends.
Predict what the results will be if they support the experiment: In this case, a particular set of bees exposed to one of the viruses or pathogens should die faster than the other groups.
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In a population of 200, 86 individuals express the recessive phenotype. What percent of the population would you predict would be heterozygous?
A. 35%
B. 55%
C. 65%
D. 45%
state the factor that is limiting the rate of photosynthesis in region x of the graph
Answer: deficiency of carbon dioxide
Explanation:
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can someone help lollz.. I'll mark for most brainliest answer..
Answer:
freeb please lol
Explanation:
what two types of cells belong in the classification of eukaryotic cells
Answer:
Unicellular eukaryotic cells Multicellular eukaryotic cellsExplanation:
Unicellular eukaryotic cells are common in protists. Multicellular eukaryotic cells are common in plants, fungal and animal.