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100

The state of maintaining a stable internal environment despite changing external conditions.

What is homeostasis?

100

The organs of the respiratory system.

What is the nose, trachea and lungs? 

100

The first line of defense from germs.

What is the skin? 

100

Small blood vessels that allow for oxygen movement into the tissues.

What are capillaries?

200

A group of cells that have the same function.

What is tissue?

200

A weakened or dead form of a pathogen. 

What is a vaccine? 

200

The biggest muscle in the human body.

What is the gluteus maximus?

200

Cells that carry oxygen to the body's cells and carbon dioxide away from the cells. 

What are red blood cells? 

300

A group of tissues that work together to carry out a common function. 

What is an orga?  

300

Stores the liquid bile produced by the liver.

What is the gall bladder?

300
Controls our leg movement.  

What are the skeletal muscles? 

300

Air sacs where gas exchange take place. 

What is the alveoli? 

400

A group of organs that work together to perform a common function.

What is an organ system? 

400

Releases enzymes that help break down food in the small intestine.

What is the pancreas and liver. 

400

The largest organ of the body.

What is the skin? 

400

The structure responsible for voice.

What is the larynx? 

500

The simplest level of organization to the most complex. 

What is red blood cell > heart tissue > circulatory system? 

500

Temporary storage tank for urine.

What is the bladder? 

500

Blood vessels that take blood away from the heart.

What are arteries?

500

A gland that produces insulin which helps to regulate blood sugar levels.

What is the pancreas?