Carbon exists in several forms: *

CO2 Gas

Fossil Fuels

Organic Matter

Limestone

All of the above

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

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.

i hope this : )

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