1) Fertilization of the ovum usually occurs

A) within one hour of ovulation.

B) as much as three to four days following ovulation.

C) in the ovary.

D) in the upper 1/3 of the uterine tube.

E) in the uterus.

2) Sperm cannot accomplish fertilization until they

A) have been exposed to the conditions in the uterine tube.

B) undergo activation.

C) lose their acrosome.

D) are in the vagina for three days.

E) are within the urethra of the female.

3) If dozens of sperm did not release hyaluronidase, no single sperm could

A) move its flagellum.

B) penetrate the corona radiata.

C) become capacitated.

D) survive the environment of the female reproductive tract.

E) metabolize fructose.

4) The period of gestation that is characterized by rapid fetal growth and adipose tissue deposition is the ________ trimester(s).

A) first

B) second

C) third

D) first and second

E) second and third

5) The period of gestation when the basic components of each of the major organ systems appear is the ________ trimester(s).

A) first

B) second

C) third

D) first and second

E) second and third

6) ________ is the period of intrauterine development.

A) Gestation

B) Amphimixis

C) Fertilization

D) Gastrulation

E) Implantation

7) The outer layer of cells separating the outside world from the blastocoele is called the

A) trophoblast.

B) chorion.

C) inner cell mass.

D) zona pellucida.

E) blastomere.

8) The division of the zygote into two blastomeres occurs during

A) cleavage.

B) implantation.

C) placentation.

D) embryogenesis.

E) fertilization.

9) Gastrulation produces an oval, three-layered sheet known as the

A) chorion.

B) blastula.

C) embryonic disc.

D) morula.

E) blastocyst.

10) A blastocyst is

A) an extraembryonic membrane that forms blood vessels.

B) a solid ball of cells.

C) a hollow ball of cells.

D) a portion of the placenta.

E) the membrane that forms the urinary bladder.