I know what it is the animals poop and the carbon from their body goes into the atmosphere
Answer:
the branch of biology and medicine concerned with the study of embryos and their development.
Explanation:
sorry if it is wrong!!!
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Paleontologists study and prove the change in form and functions of organisms throughout time in the fossil record.
Facilitated diffusion plus cotransport mechanisms
I think it might be <em>natural disasters.</em>