Sexual motivation for both men and women varies as a function of circulating testosterone levels.
<h3> What are hormones?</h3>
Hormones are defined as chemical substances that function as a messenger molecules in the body.
Hormones are produced in a particular part of the body and later travelled to the other parts of the body.
Testosterone is a hormone which is responsible for physical relationships and play a vital role in body. In men it plays a vital role in fat distribution, muscle mass and in the production of sperm as well as red blood cell.
Therefore,sexual motivation for both men and women varies as a function of circulating testosterone levels.
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I believe option C. Composed of atoms is not a characteristic of life.
DNA coils tightly during division and assembles into visible chromosomes. These are thread line structures. Each<span> chromosome is composed of DNA tightly coiled many times around proteins called histones that support its structure.</span>