Some infants cannot synthesize several of the traditionally nonessential amino acids. These amino acids must be obtained from the diet until the baby matures and are referred to as

conditionally essential amino acids

Explanation:conditionally essential amino acids can not be made by the body,you can get them from diet. It is use under pathophysiological condition such as premature in infant or individual in severe catabolic distress.

there is no

explanation:

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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