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Tiny air sacs in lungs are called:

Correct! Wrong!

Blood is red because of:

Correct! Wrong!

Veins carry blood:

Correct! Wrong!

Arteries have ______ walls.

Correct! Wrong!

Healthy lungs help us:

Correct! Wrong!

Breathing in oxygen is called:

Correct! Wrong!

The heart pumps blood:

Correct! Wrong!

affects which organ most?

Correct! Wrong!

Human Anatomy Quiz 71
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