Human Development and Pregnancy Concepts

What is the approximate size of a human zygote?

• Two millimeters

• Two centimeters

• Two meters

• Two inches

What are the three main instructions that guide the development of a human from a single cell?

• Divide, Differentiate, Develop

• Grow, Change, Form

• Multiply, Specialize, Mature

• Expand, Adapt, Create

What is the name for the berry-shaped cluster of cells that forms after a zygote divides many times?

• Blastocyst

• Embryo

• Morula

• Zygote

What temporary organ forms during pregnancy to help transfer nutrients and waste between the mother and the developing offspring?

• Uterus

• Ovary

• Placenta

• Fallopian tube

After about 8 weeks of development, what is an embryo officially called?

• Zygote

• Blastocyst

• Fetus

• Morula

What happens to a mother's internal organs as the uterus expands during pregnancy?

• They shrink to make space.

• They move out of the way.

• They stop working temporarily.

• They grow larger to support the baby.

Which hormone helps prepare the mother's breasts for making milk and tells the fetus to grow?

• Estrogen

• Progesterone

• Human Placental Lactogen (hPL)

• Relaxin

What is the first stage of labor called, when the cervix opens up?

• Expulsion

• Placental

• Dilation

• Contraction