Read and answer the questions about the circulatory system.
The circulatory system is also called the ____
Blood is bad because it makes people faint.
Blood carries ___ and ___ to our cells.
What part of the blood fights off germs and infection?
What would happen if you didn't have platelets in your blood?
Which is NOT part of the circulatory system?
The ___ deliver blood full of nutrients and oxygen to your cells.
The ___ carry carbon dioxide rich blood back to the heart and lungs
The lungs breathe out carbon dioxide and breathe in oxygen.
What is the meaning of the word rich as it used in the last paragraph?