Question 8 (3 points) Which of the following constitutes a gene pool?
all of the genes of a single individual
the genes of all the same species interacting in one area
All of the different animals which frequent the watering hole in a community
all genes of a species all over the world.

preservation because he preserves part of the land and preserves means save

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.