This is an organisms that obtains it’s energy from inorganic substances or from the sun.

(Chemo) autotroph

Explanation:

This type of organism intakes carbon dioxide(CO2) as it's carbon source(basically it's mouth). The energy comes from the non-living substances being oxidized.

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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