Somatostatin from hypothalamus inhibits the glands growth hormone
"Survival of the fittest" is the one among the following choices given in the question which is an aspect of Darwin's theory that is shown as an example in this scenario. The correct option among all the options that are given in the question is the third option or option "c". I hope that this answer has helped you.
Answer: By us people breathing in oxygen and breathing out carbon dioxide.
