Im pretty sure its guanine
A nucleus consists of a nuclear membrane that surrounds it, within the membrane there is a nucleolus which can be compared metaphorically to the yolk of an egg in appearance. The nucleolus is surrounded by nucleoplasm which is quite like the cytoplasm.
The class of macromolecule a steroid belongs to is a lipid.
Body composition:<span>is the percentage of person's total body weight that is made up of adipose (fat) tissue as opposed to lean body tissue is known as their body composition. Disease risk is closely related to body composition.
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