Answer:
four oxygen molecules
Explanation:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
The cell membrane is very important to the cell structure. It helps hold everything within the cell and serves as a protective covering as well.
Answer:
The answer is C. A thermos slows heat transfer.
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<span>Which is not a difference between a population showing exponential growth and a population showing logistic growth?
</span><span>c. carrying capacity </span>
