Human Fertilization and Embryo Development Quiz

What is the approximate number of sperm cells ejaculated during intercourse?

• 50 million

• 200 million

• 10 million

• 100 million

How are non-identical twins formed?

• From one fertilized egg that splits

• From two eggs fertilized by the same sperm

• From two eggs fertilized by different sperm

• From one egg fertilized by two sperm

What happens to the egg's membrane once a sperm enters?

• It dissolves completely

• It becomes impermeable to other sperms

• It remains unchanged

• It becomes permeable to other sperms

What is the function of the amniotic fluid?

• To help the embryo attach to the uterine wall

• To facilitate the division of the zygote

• To support and cushion the fetus

• To provide nutrients to the embryo

During birth, what role does the amniotic fluid play?

• It provides oxygen to the baby

• It lubricates the birth canal

• It helps the baby cry

• It strengthens the baby's lungs