A wildfire burns a region of a healthy grasslands ecosystem. Which climax community will MOST LIKELY arrive in the burned region due to
ecological succession?
O
A. a grasslands ecosystem, very similar to the original
O
B. a community of pioneer species, such as lichens
O
C. a grasslands ecosystem of plants only, without animals
O
D. a patchwork of grasslands, hardwood forest, and other ecosystems

A grassland very similar to the original

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.

a. to encourage apoptosis