(30 points! )
the structure of amino acids consists of;
a fatty acid, carboxyl group, and a side chain bonded to the central carbon atom
a fatty acid, monosaccharide, hydrogen atom, and a side chain bonded to the central carbon atom
an amino group, carboxyl group, hydrogen atom, and a side chain bonded to the central carbon atom
an amino group, monosaccharide, hydrogen atom, and a side chain bonded to the central carbon atom

C. An amino group, carboxyl group and a side chain bonded to the central carbon atom.

Explanation: The amino acid structure consists of amino group, a carboxyl group (Acid group) and a side chain. These three groups are bonded to a central carbon atom.

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the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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