What type of organic molecule is a steroid? what is its function?

Answer AND Explanation:

A steroid is an organic macromolecule that is biologically active with four rings arranged in a specific molecular configuration. Steroids are important components of cell membranes which alter membrane fluidity and act as signaling molecules. The two main types of steroids are corticosteroids and androgenic steroids like testosterone and estradiol.

True. There are two different fibers in the body. The slow-twitch and the fast-twitch. Slow-twitch contracts slowly, but it can keep going for a long time, while fast-twitch contracts fast, but tires easily.