Answer:
A. Phospholids and B. Steroids.
Explanation:
Lipids are fatty waxy molecules which are smaller than proteins that completes a lot of basic structures in both animals and plants inclusive.
They are been used by the body alongside proteins, sugars, and minerals. They can be found in many parts of a human: cell membranes, cholesterol, blood cells, and in the brain, to name a few ways the body uses them. The commonest of lipids are the steroid lipids which are seen in female oestrogen and in the male testosterone.
