A. Cell membrane
It is the correct answer
A) Circular, double-stranded DNA
Simply survival of the fittest. That means that if the mutation works in its favor it will survive long enough to reproduce and the others that dont have the mutation will die.
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Answer:
C. pulmonary circulation
Explanation:
The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart.