Question

Tick (/) the correct statements and cross (X) the wrong ones.
1. The heart takes less than one minute to pump blood to all cells in the body.
2. The pulmonary artery carries the oxygenated blood from heart to lungs.
3. Blood helps in maintaining temperature of our body.
4. After running fast or vigorous exercise, the heart pumps faster to maintain
the oxygen level in the body.
5. An average human heart beats about 70 to 80 times in a minute.
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Answer 1

Answer:

1. true

2.false

3.true

4true

5.false