Exam 27: Animal Reproduction and Development

Which process is responsible for the formation of fingers and toes?​

Matching Answer the questions in reference to the following four stages of human development. -The gut cavity of an animal forms during this stage. A)zygote B)blastula C)blastocyst D)gastrula

a. A b. B c. C d. D -​The organ that produces eggs and sex steroid hormones is at letter ____.

What is the function of a polar body?

In which organ does the embryo develop?

How many weeks does prenatal development last in humans?​

By the end of the fourth week of development, the embryo is ____ times larger than its starting size, although it is still less than a centimeter long.​

What is responsible for the large surge of progesterone in the menstrual cycle?​

A penis becomes erect because of ____.​

The reproductive organ in the human female that is responsible for egg production is the ____.​

The first day of the menstrual cycle is marked by ____.​

What would high levels of progesterone over a 28-day cycle do?

During implantation, the inner cell mass develops into two flattened layers of cells called the ____.​

Match the letters to the descriptions. -The structure that conducts sperm upward during an ejaculation is represented by letter ____. A)A B)B C)C D)D E)E

The birth control pill is a mixture of synthetic ____.

Which membrane is referenced in the expression my water broke?

From which germ layer(s) do(es) the nervous system arise?

Match the hormone with its description. -Rising levels of this hormone encourage the uterine lining to thicken. A)LH B)FSH C)GnRH D)estrogen

____ secrete(s) mucus into the urethra.

Erectile dysfunction drugs cause ____.