Animal Reproduction > Content Review
the observation that females routinely mate with at least two males before laying eggs or becoming pregnant
the observation that when females mate with two males, the second male fertilizes most of the eggs
the observation that accessory fluids form copulatory plugs and prevent matings by second males
the observation that when females mate with two males, each male fertilizes the same number of eggs
Both become erect in response to sexual stimulation
Both contain the urethra.
Both develop from the same population of embryonic cells.
Both produce accessory fluids.
Both primarily produce progesterone.
The follicle produces more estradiol than progesterone; the corpus luteum produces more progesterone than estradiol.
Both primarily produce estradiol.
The follicle produces mostly progesterone; the corpus luteum produces estradiol and progesterone.
estradiol and progesterone
GnRH and LH
oxytocin and LH
FSH and LH
human chorionic gonadotropin (hCG)