Answer:
Physical science is the study of the inorganic world. That is, it does not study living things.
Explanation:
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populations were prevented from interbreeding by geographic isolation
For use in (aerobic) respiration, polypeptides would first be hydrolysed to their amino acid monomers. These are each deaminated, i.e. have their amino groups removed, producing an organic acid, which can be fed into the Kreb's Cycle, and a waste product, ammonia (NH₃), which is moved to the liver and removed from the blood.
They're attached to the plasma membrane.
(it's at the midpoint of the cell.)
All animals cannot make their own food, they are consumer
