Question

1. Why do plants wilt on hot summer days?
2. Why do amoeba and paramecium not have a proper circulatory system?
3. What would happen if there were no platelets in the blood?​

Answer 1

Explanation:

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Answer 2

Explanation:

1.On hot summer days, the amount of water lost by a plant (due to transpiration) exceeds the amount of water absorbed by its roots. As a result, the plant loses water and wilts.

2.Amoeba and Paramaecium are unicellular organisms, and the single cell that makes up the organism is in direct contact with the surroundings. Therefore, there is no need of a circulatory system for the transport of nutrients or waste products.

3.Platelets are responsible for the clotting of blood. If there are no platelets in blood, then blood will not clot and a person can bleed to death even from small wounds.