Question

1. The rhythmic expansion and contraction of the heart is called
2. The main excretory product in human beings is
3.Sweat contains water and
4. Kidneys eliminate the waste materials in the liquid form called
5.Water reaches great heights in the trees because of suction pull caused by​

Answer 1

Answer:

1. Cardiac cycle.

2. urea

3. Salt

4. Urine

5. Transpiration

Explanation:

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