C human selection is the answer hope this helps
Answer:
Bromine (Br)
Explanation:
Bromine (Br) is the 35th element in the periodic table. Its atomic weight is 79.9 daltons. Elemental bromine exists as a diatomic form (Br 2).
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Answer:
Gonadotropins are polypeptide hormones and are secreted by the anterior pituitary gland.
Explanation:
Hypothalamus releases GnRH i.e gonadotropin releasing hormone which stimulates the anterior pituitary to secrete gonadotrophs such as FSH, ICSH and LH.
FSH (follicle stimulating hormone): In males it stimulates spermatogenesis. In females it stimulates growth of ovarian follicles.
ICSH (Interstitial cell stimulating hormone): In males, secretion of testosterone.
LH (Luteinising hormone): In femalestogether with FSH, it triggers ovulation, stimulates conversion of broken ovarian follicle into corpus luteum.
