Question

Group 4:
1. The
fights diseases.
2. Blood vessels are thin
that carry blood throughout our body.
when we run and
Our heart pumps
when we sit.
3.
4. Oxygen-rich blood goes from the lungs to the
class 5th
​

Answer 1

Answer:

1. WBC

Explanation:

other answers don't know

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Answer 2

Answer:

1. White blood cells.

2. Capillaries.

4. left atrium.