A female egg that has been fertilized.

• Amniotic Sac
• Placenta
• Infant
• Zygote

A thick blood-rich tissue that lines the walls of the uterus during pregnancy and nourishes the embryo _________.

• fetus
• amniotic sac
• umbilical cord
• placenta

Which is the correct order?

• embryo, fetus, zygote
• fetus, zygote, embryo
• embryo, zygote, fetus
• zygote, embryo, fetus

One of the major risks to a developing fetus when a mom smokes during her pregnancy is

• low birth weight
• high birth weight
• lung cancer
• asthma

The key to a baby's brain development is good ___________ during the mother's pregnancy.

• vitamins
• supplements
• minerals
• nutrition

The attachment of the early embryo to the lining of the womb.

• Implantation
• Placenta
• Umbilical cord
• Puberty

Describe the events that occur when humans reproduce. 
A) Sperms leave the male body. 
B) Sperms enter the female body. 
C) A sperm fuses with the egg inside the female body. 
D) Testes produce sperms.

• A, B, C, D
• B, A, D, C
• C, B, D, A
• D, A, B, C

The development of which structure led to organisms being completely adapted for land life?

• scaly skin
• four chambered heart
• gills
• egg with a shell

The picture shows an actual process caught on camera.  Assuming the menstrual cycle runs on a 28 day cycle, on what day would this process take place?

• Day 1
• Day 7
• Day 14
• Day 21

Why is alcohol so harmful to a fetus?

• It's brain is developing, and it's liver can't filter out the alcohol.
• It tastes real bad
• Because it's too strong
• Because the fetus is under 21