What evidence do you have that living organisms require
non-living things?

Explanation:

Human Life is evidence. We need chairs to sit, tables to lay our hands on, spoons to eat and so on.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

thinking it would be d not too sure but i think it's right