The answer is A. ecology
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If a scientist is conducting an experiment about obesity and asks a group of people to stop eating saturated fat, that group of people is called the experimental group. Thus, the correct option is A.
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Define experimental group in scientific study?</h3>
A experimental group in scientific study is defined as the researcher compares at least two groups during an experiment, a control group and an experimental group.
Because they are both made up of people from the same population, they are identical in every way except for the independent variables.
The therapy is administered to the experimental group. The researcher willingly alters the independent variable's values to see how it impacts the people who are being studied. Several experimental groups are possible.
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Adaptation is a heritable trait. The increase of adaptive evolution by the frequency and effectiveness of an advantageous character over time. Organisms became better adapted to their environment. We have so many species in the world because species have adapted to every possible niche. Different habitats and environment have resulted in different modified organisms.
Some of the options for survival and reproduction include genetics ecology, human evolution, molecular evolution, bioinformatics, geology and sociology.
The ocean is least likely because it is salt water not fresh water, as opposed to lakes :)
Answer:
Hydrogen sulfide or methane
They use methane as an energy source
