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Question

Statement   I: Energy is required by every living organism to survive and carry out different activities.
Statement  II: Living organisms obtain this energy by nutrition.
Statement III: Nutrition alone is enough to provide the required energy to the organisms.

Which of these statement(s) is/are correct? 
  1. I, II and III
  2. I and II
  3. II and III
  4. I and III


Solution

The correct option is B I and II
Energy is a basic requirement by all living organisms to survive and perform various functions. This energy is obtained by nutrition. However, nutrition alone is not enough to provide the energy. Another process, respiration is involved in burning down the food obtained during nutrition to produce the energy required for survival. 

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