Exam 41: Animal Reproduction

The production of new phenotypes occurs with:

The cell the sperm penetrates:

Why must organisms that spawn release huge numbers of eggs and sperm?

During the first half of the menstrual cycle, levels of ________ increase, causing the follicle to grow and GnRH levels to increase, and creating a positive feedback loop.

How do barrier methods of birth control prevent conception?

________ are chemicals released into the environment to synchronize mating behaviors and brings eggs and sperm together.

The contraceptive patch works by killing sperm. True or False?

Sexually transmitted infections can be spread only via unprotected intercourse. True or False?

The egg that is released from the ovary during ovulation is known as a(n):

What is the definition of a pheromone?

A primary spermatocyte divides to produce two haploid secondary spermatocytes. True or False?

The ________ connects the epididymis to the urethra.

A couple has been trying unsuccessfully to conceive for several years. An examination reveals that scar tissue blocks the woman's uterine tubes. The woman has complained about large amounts of vaginal discharge, which coincide with her husband complaining of painful urination and a pus discharge from his penis. Antibiotics clear up the infections. This couple has probably been infected with:

In humans, fertilization normally occurs in the:

The head of a sperm consists of the acrosome and the ________, but little else.

What does the corpus luteum produce?

Semen contains prostaglandins from the ________, which stimulate uterine contractions to help transport the sperm.

The production of offspring from unfertilized eggs is called parthenogenesis. True or False?

In the "typical" menstrual cycle, day 13 or 14 is when:

Birth control injections use a synthetic ________ to prevent ovulation.