Hello. This question is incomplete. The complete question would be:
"Cholesterol is an organic steroid in mammalian cells that controls membrane permeability and fluidity. How many hydrigens are in cholesterol?"
Answer:
46
Explanation:
Cholesterol contains carbon, hydrogen and oxygen atoms, and its molecular form is C27H46O, which means that cholesterol has 27 carbon atoms and 46 hydrogen atoms. Its structure consists of a region of 4 hydrocarbon rings attached to a hydroxyl group at one end and a hydrocarbon tail at the other. The hydroxyl group is the only hydrophilic part of the molecule, which makes it insoluble in blood as mentioned above.
The structure of cholesterol can be seen in the image below.
She should have to classify this animal under pseudocoelomates category. The body cavity of these animals are filled with fluids. Internal organs are covered by the fluid filled space. The body cavity serves as the hydrostatic skeleton and have other functions such as digestion of food and waste removal.