Which body system is responsible for making us breathe?

• digestive system

• immune system

• excretory system

• respiratory system

The main function of the respiratory system is to take in ______________ through the lungs and get rid of carbon dioxide and water.

• oxygen

• saliva

• water

• carbon dioxide

The brain is the main organ that is part of the _____________ system.

• nervous system

• immune system

• respiratory system

• digestive system

Tags

NGSS.MS-LS1-3

True or False: the digestive system is responsible for transforming your food into nutrients and energy to keep your body alive.

• true

• false

Tags

NGSS.MS-LS1-7

This organ allows our body to complete tasks like picking up a pencil to write.

• heart

• lungs

• pancreas

• brain

Shawna is kicking a soccer ball at recess. Which of these organs helped her the most in this task?

• bladder

• small intestine

• muscles

• lungs

This organ in your digestive system makes enzymes that help break down food and balance your sugar levels.

• kidneys

• pancreas

• liver

• large intestine

Which organs are responsible for getting oxygen to your body with your blood?

• kidneys, ureters, and bladder

• heart, veins, and arteries

• lungs, bronchial tubes, and trachea

• brain, spinal cord, nerves

This organ creates bile to help your body break down fat and food in your digestive system.

• pancreas

• small intestine

• stomach

• liver

Mammals use lungs to breathe in air, get oxygen, and release carbon dioxide. What structure do fish have that is similar to the lungs to get oxygen from the water?

• mouth

• gills

• swim bladder

• fin