Human Body Systems

Question 1

What is the purpose of the respiratory system?

Answer 1

Absorbs oxygen and gets rid of carbon dioxide.

Question 2

What is the purpose of the circulatory system?

Answer 2

Distributed blood containing oxygen and nutrients.

Question 3

What is the purpose of the kidneys?

Answer 3

Gets rid of waste and regulates the amount of water in the body.

Question 4

What is the purpose of the digestive system?

Answer 4

To break down food.

Question 5

What is the purpose of the nervous system?

Answer 5

Transmits messages throughout the body.

Question 6

What’s your body’s first line of defense?

Answer 6

Skin.

Question 7

What’s your body’s second line of defense?

Answer 7

Circulatory system.

Question 8

What’s your body’s line of defense when a virus gets into your blood stream?

Answer 8

Your white blood cells find a destroy the virus.

Question 9

How does oxygen enter a multicellular animal?

Answer 9

By diffusing across the cell membrane.

Question 10

How do special cells move fluid?

Answer 10

By working together.

Question 11

What is the respiratory system responsible for?

Answer 11

Absorbing oxygen from air and removing carbon dioxide from body.

Question 12

What are the main organs in the respiratory system?

Answer 12

Trachea (windpipe), lungs, and diaphragm.

Question 13

What does a circulatory system do?

Answer 13

Brings every cell into almost direct contacts with oxygen and nutrients.

Question 14

What else does the circulatory system do?

Answer 14

Carries blood around body.

Question 15

What is excretion?

Answer 15

Cells working together to remove waste.

Question 16

If a cell didn’t remove waste, what would happen?

Answer 16

The cell would poison itself and die.

Question 17

What does the liver produce?

Answer 17

Nutrients and ammonia, a poisonous gas.

Question 18

What else does the excretory system do?

Answer 18

Regulates water in the body.

Question 19

What is digestion?

Answer 19

Process that the body uses to break down food.

Question 20

Where does an animal get its’ food?

Answer 20

From other organisms and food products.

Question 21

What does saliva do?

Answer 21

Moistens the food to make food easier to chew and digest.

Question 22

What are cells organised into?

Answer 22

Tissue, organs, and organ systems.