What is the name of the vesicle at the tip of a sperm cell that contains enzymes that will help the sperm cell penetrate an egg cell it encounters?

Which of the following is the largest in size?

The lining or inner layer of the uterus is called the

In humans, fertilization of an egg normally takes place when the sperm and egg unite in the:

Ectopic pregnancy is ______________

Progesterone is produced by the

The egg can be fertilized until about _______ after ovulation.

The placenta does all of the following except:

What connects the fetus to his mother's placenta?

Pre-birth development follows this pattern:

A structure that holds the fetus in the uterus, protects it from shocks and maintain his temperature is _______

A cortical reaction is a reaction that

Around 7 days of conception, the fertilized egg reaches the uterus and becomes a

What is the name of the process that allows sperm cells to become capable of fertilizing an egg cell?

The primary germ layers of a blastocyst listed from the outer layer to the inner one?

The placenta is a structure

HCG is a hormone secreted by

The first trimester of pregnancy is characterized by

Ectoderm is the embryonic germ layer that develops into _____________

Uterine contractions are very close together and the strongest during________

Around 10 weeks of pregnancy the _____________ replaces the corpus luteum in term of progesterone secretion

The heart of the fetus is fully formed during the

Birth occurs in 3 stages listed in order:

Birth control techniques are voluntary methods that

Development of specialized cells is called