Which of the following hormones is released by the corpus luteum after ovulation and causes a negative feedback loop with the hypothalamus and the anterior pituitary? a) progesterone
b) luteinizing hormone
c) gonadotropin releasing hormone
d) estrogen
e) gonadotropin

Option a: progesterone

Explanation: After ovulation, empty follicle becomes corpus luteum which secrets hormone progesterone. Corpus luteum establishes pregnancy by releasing progesterone hormone after ovulation by making the uterus feasible for implantation by making it thick. Progesterone takes part in the development of endometrium for the stability of pregnancy and helps to feed the developing fetus. During the entire pregnancy, progesterone levels are maintained which doesn't allow more eggs to be developed. If the fertilization doesn't occur, the corpus luteum does not secret this hormone, means the level of this hormone becomes low and menstruation occurs.

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.