Pregnancy

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

• sex cell
• zygote
• fetus
• embryo

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

• umbilical cord
• placenta
• amniotic sac
• uterus

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

• umbilical cord

• placenta

• amniotic sac

What is fertilization?

• When a male sperm cell joins with a female egg cell
• The time when a fetus is ready to be born
• When the egg implants in the uterine lining
• The time when the zygote turns into an embryo

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

• uterus
• ovary
• fallopian tube
• stomach

What is the most common sign of pregnancy?

• nausea and vomiting
• feeling more hungry than normal
• headaches and backaches
• not getting a period

A period of three months is known as a(n)

• gestation
• embryo
• trimester

About how many weeks is a woman considered to be full term when pregnant?

• 10

• 40

• 9

• 30

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

• Identical twins

• Fraternal twins

• Multiple 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