Genetic drift and natural selection … (a: never lead to different populations - - that happens by another mechanism in nature ,
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Answer:
Explanation:
The Flowchart is in the picture below. I hope it would be helpful for you.
Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.
but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
for more refer to this:
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and ur welcm
