Question

which species is an example of an induced ovulator?
a. cat
b. horse
c. guinea pig
d. dog

which hormone has a primary role in uterine contractions during parturition?
a. oxytocin
b. progesterone
c. relaxin
d. follicle stimulating hormone

through what structure does sperm exit the testes?
a. ejaculatory duct
b. vas deferens
c. efferent ductules
d. seminiferous tubules

Explanation:

Analyze induced ovulation species

Induced ovulators require the physical stimulus of mating to trigger ovulation. Cats (felids) are classic examples of induced ovulators, whereas horses, guinea pigs, and dogs are spontaneous ovulators.

Identify parturition contraction hormone

During parturition, uterine contractions are primarily stimulated by oxytocin, which is released from the posterior pituitary gland. Progesterone maintains pregnancy, relaxin softens pelvic ligaments, and follicle-stimulating hormone regulates gamete development.

Determine sperm exit pathway

Sperm are produced in the seminiferous tubules of the testes. They exit the testes through the efferent ductules to enter the epididymis for maturation. The vas deferens and ejaculatory duct are located further along the reproductive tract outside the testes.

Answer:

Question 1

• a. Cat (Correct answer)
• b. Horse
• c. Guinea pig
• d. Dog

Question 2

• a. Oxytocin (Correct answer)
• b. Progesterone
• c. Relaxin
• d. Follicle Stimulating Hormone

Question 3

• a. Ejaculatory duct
• b. Vas deferens
• c. Efferent ductules (Correct answer)
• d. Seminiferous tubules