Reproductive System

Reproductive System

Open Ended

The diagram below represents male gametes from different animals.

State one way, other than the fact that they all contain DNA, the genetic content of these gametes is similar.

Multiple Choice

Three human hormones most directly involved

in sexual reproduction are

• estrogen, insulin, and progesterone

• testosterone, estrogen, and insulin

• progesterone, ATP, and testosterone

• estrogen, progesterone, and testosterone

Multiple Choice

The male reproductive organ that produces the the male sex hormone is the

• epididymis

• vas deferns

• scrotum

• testes

Multiple Choice

Fertilization takes place in the

• fallopian tube

• vas deferens

• ovary

• uterus

Multiple Choice

Implantation of a fertiized egg takes place in the

• ovary

• fallopian tube

• uterus

• vagina

Open Ended

Examine the diagram. Read the stages. The answers in order are:

Multiple Choice

The diagram below represents structures found in the female reproductive system.

If the areas labeled A were completely blocked

on both sides, the most likely result would be that

• egg and estrogen production would stop

• sperm and insulin production would stop

• fertilization would not occur

• an embryo would develop

Multiple Choice

Which statement best describes an important

process carried out by structure X?

• Milk passes from the mother to the fetus.

• Materials are exchanged between fetal and

  maternal blood.

• Maternal blood is converted into fetal blood.

• Oxygen diffuses from fetal blood to maternal

  blood.

Multiple Choice

In humans, the placenta is essential to the

embryo for

• nutrition, excretion, and reproduction

• respiration, nutrition, and excretion

• movement, reproduction, and nutrition

• coordination, movement, and growth

Open Ended

The placenta secretes progesterone and estrogen during pregnancy.

Progesterone is responsible for the following functions:

• maintains the lining of the uterus

• inhibits (interferes with) contractions of the uterus

• inhibits the production and release of eggs

Describe one likely result if the placenta became damaged and could not maintain progesterone levels.

Support your answer.

Open Ended

Explain how the release of additional eggs is prevented during pregnancy.