Question

Plz answer and thank you

Answer 1

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1. The function of white blood cells in the blood is to prevent disease caused by the pathogens. Platelets helps in healing the injury in our body.
2. Heartbeat measures the number of times the heart contracts and releases. Whereas pulse rate calculates the rate in which the blood pressure upsurges in the body.
3. Transpiration helps the plant to lose excess water in the form of water vapour through the surface of the leaves.
4. Sweating helps cool down the body. Its main function is to control the body temperature.
5. In aquatic organisms and single-celled organisms cellular wastes and excess water are excreted by exocytosis.

Answer 2

Answer:

1.Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.

2.Heart rate and pulse rate are different because a heart rate measures the heartbeat of the heart,whereas a pulse rate measures the rate of blood pressure.

3.Evaporation of water molecules from the cell of a leaf creates a suction which pulls water from the xylem cell of roots. thus, transpiration helps in the absorption and upward movement of water and minerals dissolved it from roots to the leaf

4.Sweating helps cool down the body. Water is realised through glands in the skin, evaporate off the skin and the body is cooled. during exercise,muscles heat up more, so more sweat is needed

5. Sorry but I don't know