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Question

Which of the following life process is involved when an athlete sweats after a race?​


  1. Excretion

  2. Nutrition

  3. Growth

  4. Respiration


Solution

The correct option is A

Excretion


During the process of sweating, the body produces some fluids to get rid of the heat in your body. In this process, unwanted substances  such as small amounts of urea, salts, etc.are eliminated. The process in which unwanted substances are eliminated from the body is known as excretion.Therefore, sweating is a mode of excretion. Nutrition is the extraction of energy from the food that we intake which is used for various life processes like growth, maintenance, reproduction, etc. Respiration is the process by which organisms exchange gases with the surroundings and generate energy in the form of ATP which is the cellular currency for energy. 

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