Answer: it is the ability to be maintained at a certain rate or level
Explanation:
Answer:
The small number behind each element symbol designates the number of atoms of each element in a chemical formula. If there is no number, it is assumed there is only one of those elements. A large number in front of a compound designates how many units there are of that compound.
Answer:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes.
Explanation:
Your answer is D.)
Cell walls are indeed rigid and are not flexible. Cell membranes are more flexible.
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