How does taxonomy help us understand relationships among organisms on Earth?

Taxonomy helps us understand relationships among organisms on earth because you can produce a genetic tree diagram which starts from present day animals and goes back to the first early life forms. Scientists will use living organisms and extinct organisms either from fossils, from drawings or from photographs.

the correct answer is:

a population changes in response to a change in the environment.

d. planting trees

the trees take in carbon to make oxygen.