Which jobs does the circulatory system do?

• It brings nutrients to cells.

• It helps remove carbon dioxide waste from the body.

• It brings oxygen to the cells.

• It breaks down food into small pieces.

Which of these might be part of an animal's circulatory system? Select all that apply.

• esophagus

• blood vessels

• heart

• blood

Which jobs does the respiratory system do? Select all that apply.

• It brings oxygen to the blood.

• It pumps blood throughout the body.

• It removes carbon dixiode waste from the blood.

• It takes in oxygen from air or water.

Which of these might be part of an animal's respiratory system?

Select all that apply.

• gill

• heart

• lungs

• passage ways to the lungs

Which system brings oxygen into the blood and removes carbon dioxide waste from the blood?

• respiratory system

• circulatory system

Which of these might be part of an animal's respiratory system?

Select all that apply.

• stomach and esophagus

• gills

• lungs and passways to the lungs

• heart

Which of the following are the functions of blood?

Select all that apply.

• Blood carries nutrients, water, and oxygen.

• Blood makes food for the body.

• Blood carries carbon dixoide waste.

Did you enjoy learning about animal's circulartory and respiratory systems?

• yes

• no

• somewhat

What did you like or not like about the lesson?

The ​ (a)   pumps blood through an animal's body.

• heart
• lungs
• stomach