Answer:
Diffusion is the net movement of a substance (liquid or gas) from an area of higher concentration to one of lower concentration, During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP).
Explanation:
Answer:
fossils provide solid evidence that organisms from the past are not the same as found today.
Explanation:
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Answer:
The answer is of option C.
Answer:
aortic arches (earthworms)
Explanation:
Earthworms vessels link together
