All living things are made up of cells

What is output (waste) gas of cellular respiration

These blood vessels bring deoxygenated blood from the body back to the heart and lungs.

The ________ loop of the circulatory system moves blood from the heart to the lungs and back to the heart.

True or false: Humans need food and oxygen for energy

True or false: Deoxygenated blood is blue and oxygenated blood is red

This specialized cell is the foundation to the brain and nervous system

These structures in the lungs help gas exchange take place

How many chambers does the human heart have?

This type of specialized cell transports oxygen and nutrients to your cells and carbon dioxide and water away from your cells.

This type of blood vessel is one cell thick and has very thin walls so gas and nutrient exchange can take place between the blood and cells.

Structures that perform essential functions inside cells are called

Cancer is a disease where mutated _________ divide uncontrollably

The ________ lung is a little bit smaller than the other one because of the location of the heart.

The ______________ loop of the circulatory system move blood from the heart, around the body, and back to the heart