Urinary and Reproductive System
Cells and More
Endocrine System
Integumentary System
100

The four letters that make up DNA

What are A, C, T, G?

100

A group of microscopic organisms that cause diseases.

What is bacteria?

100

An organ in the body that produces and releases hormones.

What is a gland?


100
The outer layer of skin.

What is the epidermis?

200

The process of eliminating waste from the body.

What is excretion?

200

Means "tiny organ"; these structures are found inside a cell.

What are organelles?
200

The body's chemical messengers.

What are hormones?

200

A small cavity or sac in which a hair can grow.

What is a follicle?

300

The organ in the body responsible for removing waste from the body and regulating the body's fluid levels.

What is the kidneys?

300

Tiny, living units that are the building blocks of all living things.

What are cells?

300

This gland is responsible for metabolism, respond to stress with "fight or flight".

What is the adrenal gland?

300

The thick lower layer of skin beneath the epidermis.

What is the dermis?

400

The material that carries all the information about how a person will look and function.

What is DNA?

400

These cells defend the body against disease.

What are white cells?

400

The gland controls the body's growth.

What is the pituitary gland?

400

The process that helps cool the body down and removes waste.

What is sweating?

500

The organ holds urine.

What is the bladder?

500

The organelle that contains cell instructions as DNA.

What is the nucleus?

500

The gland that regulates sleep.

What is the pineal gland?

500
These places on the body are not covered with hair.

What are lips, palms of the hand, soles of the feet?