Generation Genius Body

As you exercise, your circulatory system works with which other system to take in oxygen?

• muscular

• digestive

• respiratory

• endocrine

Which system pumps blood through your body?

• circulatory

• digestive

• respiratory

• muscular

When Dr. Jeff bends his arms to lift a weight, what is happening to his bicep muscle?

• it's contracting

• it's relaxing

• it's flipping over

• it's getting longer

Tags

NGSS.MS-LS1-3

As your body works harder, what happens to your heart rate?

• decreases

• stays the same

• increases

• reverses

What important substance is replenished as blood flows through the heart?

• water

• nitrogen

• iron

• oxygen

Tags

NGSS.MS-LS1-6