Question

A. Give one word for the following.
1. Organ that pumps blood throughout the body.
2. This carries oxygen to all parts of the body.
3. Tubes in which blood flows across the body.
4. Thin-walled blood vessels that carry
blood back to the heart.
5. The upper chambers of the heart.​

Answer 1

Answer:

1. heart
2. blood vessels
3. veins
4. capillaries
5. right atrium, left atrium

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