The answer is
letter A.
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In the
evolutionary sense fitness refers to the measure of reproductive success of an
individual or of organisms in general. Those organisms that leave the largest
number of mature offspring are the fittest. Fitness can be achieved through survival
or mortality selection, mating success or sexual selection, and family size or
fecundity selection. Fitness is critical for a species’ survival and is a major
adaptation that all organisms do through a long period of time. <span> </span></span>
Hm Well, Hematopoiesis is defined as the process of blood cell production, multiplication and specialization in the bone marrow.
The respiratory system regulates oxygen flow, and provides regulation for oxygen blood content. Circulatory system plays a roll in providing enough oxygenated blood to the body
<span>hot flashes, sweating, acne, rash, itching;mood changes;headache, general pain;vaginal swelling, itching, or discharge;breakthrough bleeding;weight gain;decreased testicle size; or.<span>redness, pain, swelling, or oozing where the shot was given</span></span>