Pregnancy

The male and female gametes fuse to become a .....

• Embryo

• Zygote

• Fetus

• Baby

The zygote stage is defined by .....

• Organ development

• Cell division

• Growth

• Other

The organs are formed in this stage.

• Zygote

• Embryo

• Fetus

• None of the above

The ________ connects the fetus to the placenta

• Amniotic sac

• Uterus

• Umbilical cord

• Cervix

Pregnancy lasts about ....

• 270 days

• 39 weeks

• 9 months

• All of the above

The membrane that lines the interior of the uterus is called the ....

• Amniotic sac

• Endometrium

• Placenta

• Umbilical cord

A zygote becomes an embryo when ...

• The baby is born

• The organs have developed.

• It implants on the endometrium.

• It is 8 weeks old.

An embryo becomes a fetus when...

• It is 8 weeks old.

• It is around 2.5cm long.

• The organs have developed.

• All of the above.

What provides the fetus with protection against outside impact?

• Uterus

• Amniotic sac

• Amniotic fluid

• Placenta

What is the purpose of the placenta?

• Provides protection from impact.

• Lines the uterus.

• Allows food, gas and waste exchange.

• Where fertilization occurs.