Do you think that a motion detector that used visible light instead of infrared rays would work very well? Explain your answer in terms of both passive and active
detectors!
I

the answer for this question would be d. glaciers

i don’t no. suiopgohjk

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.