Exam 49: Animal Reproduction

Which mammalian group lays eggs?

One function of the developing follicle is to ____.

The female erectile structure analogous to the male penis is the ____.

Recent research has indicated that for human _____, vocal pitch changes may be associated with fertility.

Tubal ligation causes sterility because ____.

External fertilization is most common in animals living in ____.

In many mammalian species, including bats and most non-human primates, a bone in the penis, called the ____, helps to maintain it in an erect state.

Which male structure is shared by both the urinary and reproductive systems?

Vasectomy causes sterility because ____.

The drug mifepristone (RU-486)is a contraceptive that ____.

List some of the environmental factors that may be associated with male and female infertility.

In humans, spermatogenesis differs from oogenesis in that spermatogenesis ____.

In ____, pieces separate from the body of a parent and develop into new individuals.

In humans, the gonads ____.

Which condition favors sexual reproduction over asexual reproduction?

In ____, a new individual grows and develops while attached to the parent.

Explain the roles of the hormones GnRH, FSH, and LH in the male and female reproductive systems.