The second answer is b. third answer is c
The correct answer is testosterone.
A chemical messenger simply refers to a hormone.
Testosterone is a lipid - based hormone. In fact, it is an anabolic steroid . Steroids are a type of lipid which has four rings of carbon atoms.
Testosterone is a hormone produced by the Leydig's cells in the testes, and which encourages the development male sexual characteristics such as deep voice, a beard, increased muscle mass and bone mass, and growth of hair on the chest.
<span>Blood flow to the skin increases when the
temperature of the body rises. When you are too hot, the blood vessels in your
skin expand (dilate) to carry the excess heat to your skin's surface. It helps
cool your body. </span>
Answer:
I believe its either lipids or proteins.
Explanation:
Sorry if I'm wrong!
Answer:
A tapeworm is a parasitic infection, aka a parasite.
