Pregnancy

A developing fetus grows in which part of a woman's body?

• ovary

• fallopian tube

• uterus

• cervix

What is the most common sign of pregnancy?

• nausea and vomiting

• feeling more hungry than normal

• headaches and backaches

• not getting the period

Why does the embryo attach to the uterine lining?

• So the sperm cells can find it

• So it cannot flow out of the body during the period

• To get oxygen and nutrients from it

• To protect itself as it grows

Twins that are formed when two eggs are fertilized by two different sperm cells are called

• Identical twins

• Fratenal twins

• Multple twins

• Twins

Identical twins are formed when

• the embryo splits into two and then stays stuck together

• when 1 egg is fertilized by 1 sperm and then divides into 2

• when two eggs are fertilized by one sperm

• when one egg is fertilized by two sperm

Behavior problems, stillbirth and miscarriage can all occur when a mother uses what?

• tobacco

• alcohol

• drugs

• all chemical substances

What term describes the single cell that is formed when the sperm and the egg join together?

• fetus

• embryo

• zygote

• gamet

What term describes the multi-celled mass formed by the divisions of the single cell?

• zygote

• embryo

• gamete

• fetus

What is the structure in the womb that filters nutrients and oxygen between mother and baby?

• placenta

• umbilical cord

• amniotic fluid

• amniotic sac

What structure inside the womb transports oxygen and nutrients to the baby?

• umbilical cord

• amniotic sac

• amniotic fluid

• placenta