It is a loose pouch like sac that protects the testes behind the penis.

Sperm cell are actually produced in tiny coiled tubules, known as the ______?

Which of these is the male sex cell that unites with the female egg cell to form a fertilized egg or zygote?

A human being is formed by the union of the sperm and the egg cell.

When the egg cell is not fertilized by a sperm cell, menstruation begins.

1.    It is a muscular tube of female reproductive system that leads to the outside of the body?

In which stage does rapid growth and increase in mass take place?

It is the monthly discharge of blood and tissue from the uterus and it lasts for about five days?

A type of asexual reproduction when one organism splits into two identical parts of the same size.

Is a form of reproduction wherein a small part of the body separates to form a new organism.

Is the ability of an organism to regrow certain parts of its lost body parts.

It is the union of the egg and the sperm cells outside the body.

__________ are those whose young develop completely inside their mother's body.

Also known as female gonads that produce egg cells and female sex hormones.