The answer is D. the curculitory system transports hormons.
Most have eight but some have as many as twelve.
<span>Human weight at the time of birth is influenced by stabilizing selection. Stabilizing selection, also known as negative selection, purifying selection or normalizing selection, is a type of natural selection in which genetic diversity decays according to a particular value of the character. This is the most common mechanism of action of natural selection.</span>
The nucleus intructs cells to do their activities