Unit 3 Review

What are the three types of Muscle? Select all that Apply.

• Stretchy
• Smooth
• Cardiac
• Skeletal
• Hard

What body system is the "control center" of your body?

• circulatory
• respiratory
• nervous
• muscular

Which is an example of a stimulus in the environment?

• wood
• a loud noise
• water
• people

An action that is taken because of a stimulus is a:

• homeostasis
• fever
• response
• quiet noise

The nervous system sends messages to rest of your body with chemical and electrical signals.

• true
• false

Check the 2 boxes that are considered waste products that your body must get rid of.

• urine
• oxygen
• water
• carbon dioxide

What carries nutrients, water, and oxygen to every cell in your body?

• brain
• blood vessels
• liver
• stomach

Digestion is:

• your brain sending messages to your body
• food being broken down into nutrient molecules
• kidneys filtering urine
• carbon dioxide leaving your lungs

Both chemical and mechanical digestion happen in your mouth.

• true
• false

Your lungs are the main organ of your circulatory system.

• true
• false