The word ________ means "neck." In the female reproductive system, it refers to the neck of the uterus.

This female hormone is responsible for the development of secondary sex characteristics such as wider hips, enlarged breasts, and the presence of pubic hair and armpit hair.

It is an external organ that is used in urinating and ejecting semen to the female reproductive organ during ejaculation or sexual intercourse.

These are two reproductive glands that produce sperm and release the male sex hormone testosterone.

The following are the main parts of the female reproductive system, except one.

It is the male hormone produced by the testes.

Puberty in males starts at the age between 12 and 16.

This hormone plays a role in the maintenance of the uterus during pregnancy.

What do you call the first menstrual flow in females?

Progesterone is the hormone that causes changes in a male's body.

These are animals that live on land.

These are animals that live in the water.

These are groups of animals that have a backbone or a spinal column.

Fertilization is the start of having a new organism.

These animals do not have a backbone.

It is the male reproductive organ of a flower.

It is the female reproductive cells of a flower.

These are the pretty part of the flower that give its shape, odor, and form.

Flowers are the reproductive organs of flowering plants.

It is a part of the male reproductive organ of a flower that produces and stores the pollen.

A ______________ is an exact quantity that we agree to use to compare measurements.

A ___________ is a standard used to describe the physical quantity of an object.

It represents how close a measurement comes to its true value.

It is how close a series of measurements are to one another.

The SI unit for time is __________.

It is a measure of how far an object has traveled.

Distance is measured in the same way as length, and its SI unit is the _______ as well.

It refers to the total distance covered in the total amount of time it traveled.

It is an instrument that measures the distance traveled by a vehicle.

It tells us the distance traveled by an object in a given time.