If an age pyramid has a triangular shape, we know the population is stable. Four of these are methods of asexual reproduction among invertebrates. Four of these match female structures with their function. FSH secretion 3. Four of these match male reproductive components with their function.
Gestation is the a. event of birth.
Spermatogenesis occurs in the a. interstitial cells. Each ovarian follicle contains one a. corpus luteum. Oxytocin mainly a. controls pituitary secretion. A posterior pituitary reproductive hormone is a. estrogen. The zygote is a. a ball of cells.