Exam 42: Animal Reproduction

During the first half of the menstrual cycle, GnRH stimulates the release of FSH, which stimulates the growth of follicle cells to secrete increasing levels of___________ , which then stimulates the release of more GnRH, creating a positive feedback loop.

Mature sperm are stored in the

The onset of puberty is triggered by maturation of the brain, which stimulates the hypothalamus to secrete

Female salmon build nests in gravel river bottoms to lay eggs, which are then fertilized by male salmon that approach and deposit their sperm over the eggs. This is an example of

The monthly shedding of the uterine lining is called ___________.

-The structure labeled 1 contains a

___________is the asexual process by which an organism grows a small version of itself on the body of the adult, which then pinches off when it is large enough to be independent.

Contraceptive methods that rely on synthetic hormones

The presence of testosterone triggers the release of LH to produce more testosterone, as explained by negative feedback.

Why do FSH levels drop after ovulation?

HIV, which causes AIDS, can be cured by using broad-spectrum antibiotic therapy.

During the process of ___________, aquatic species release large numbers of gametes into the water

Animals that have internal fertilization without copulation often package their sperm in___________, which are inserted into the female.

What role do courtship behaviors play in spawning?

How do barrier methods of birth control prevent conception?

Sixty percent of the fluid in semen comes from the ___________; this fluid contains prostaglandins that stimulate uterine contractions to help transport the sperm.

Around day 21 of the menstrual cycle, levels of the hormone ___________, which is produced by the corpus luteum, peak.

The ___________is a tube that carries sperm from the epididymis to the urethra.

Which of the following is the correct path sperm travel on their way to fertilize an egg?

Why is it necessary for the testes to be in the scrotum to function properly?