Exam 36: Reproduction and Development

An open space within the gastrula is the

What embryo-produced hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy?

Among mammals, the male and female genital structures that consist mostly of erectile tissue include the

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. Figure 36.1 -In Figure 36.1, which letter points to the corpus luteum?

Environmental cues that influence the timing of reproduction generally do so by

A contraceptive pill that continuously inhibits the release of GnRH from the hypothalamus will

Which statement about human reproduction is false?

In an egg cell treated with EDTA, a chemical that binds calcium and magnesium ions, the

Cells move to new positions as an embryo establishes its three germ tissue layers during

Imagine that a woman is in the final week of her pregnancy. Her doctor gives her an injection of oxytocin. The likely result of this is that the pregnant woman would

In close comparisons, external fertilization often yields more offspring than does internal fertilization. However, internal fertilization offers the advantage that

Sperm cells are stored within human males in the

Human sperm cells first arise in the

Menopause is characterized by

So-called "combination" birth control pills function in contraception by

Sexual reproduction patterns include the example of

A primary response by the Leydig cells in the testes to the presence of luteinizing hormone is an increase in the synthesis and secretion of

Which of the following characterizes parthenogenesis?

Contact of a sperm with signal molecules in the coat of an egg causes the sperm to undergo

Changes in both cell shape and cell position occur extensively during