What are 3 issues about habitat loss.

Pollution,invasive species, and disruption of ecosystems processes such as changing the intensity of fires in an ecosystem these are some of the ways habitats can become so degraded and they no longer support native wildlife.

the answer is b

explanation:

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.