The correct answer is: egg growth.
Follicle stimulating hormone (FSH) is gonadotrophic hormone produced by the pituitary gland with the function to regulate the growth and development of both the ovaries and testes.
FSH stimulates the growth and maturation of ovarian follicles in the ovary before the release of an egg from one follicle at ovulation and increases oestradiol production.
The secretion of FSH is controlled by gonadotropin-releasing hormone (GnRH) released from hypothalamus.
It was also found that an increase in testosterone during the PASP predicted subsequent willingness to choose competitive tasks (3, 28, 29). ... Aggression research in human studies has revealed an interesting property of testosterone dynamics, its rapid fluctuations provoking reactive aggression in response to stimuli.
Bio accumulation of DDT lead to bird eggs with weak shells and non viable offspring. The lethal effects of DDT on birds was first noted in 1950; scientists discovered that earthworm was accumulating the DDT pesticide and that the robins that were preying on the earthworms were been poisoned. Further research revealed that the chemical cause thinning of the egg shell and production of non viable offspring. The chemical has since been banned in USA.
