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1. What are life processes?
Ans. Life processes are the fundamental activities that living organisms perform to maintain their lives. These processes include nutrition, respiration, transportation, excretion, regulation, and reproduction.
2. What is the importance of life processes?
Ans. Life processes are essential for the survival and growth of living organisms. They help in maintaining the balance of the internal environment of the organism, ensuring that it functions optimally. Without these processes, living organisms cannot sustain themselves and eventually die.
3. What is the role of nutrition in life processes?
Ans. Nutrition is a crucial life process that involves the intake of food and water to provide the organism with the necessary nutrients, energy, and building blocks for growth and repair. It involves ingestion, digestion, absorption, assimilation, and egestion.
4. What is the importance of respiration in life processes?
Ans. Respiration is a vital life process that involves the exchange of gases between the organism and the environment. It provides the organism with the necessary oxygen for energy production and removes carbon dioxide, a waste product of metabolism. Without respiration, living organisms cannot survive.
5. What is the difference between excretion and egestion?
Ans. Excretion and egestion are both life processes that involve the removal of waste products from the organism. Excretion involves the elimination of metabolic waste products such as urea, excess salts, and water from the body. Egestion, on the other hand, involves the elimination of undigested food material from the body in the form of feces.
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