There are very specific requirements to become a veterinarian. Please describe the four steps, after graduation of high school. Why do you think there are so many requirements to become a veterinarian?

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.

thinking it would be physical characteristics

idk lol use google m8