Which of the following would be examples of abiotic factors in a mountain river ecosystem? fish, algae, and sand

sand, water, and fish

sand, water, and minerals

water, fish, and algae

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.

light dependent reactions:

light independent reactions:

hope this !