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Ecology: O level Biology Multiple Choice Questions (MCQs) PDF Download - 9

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Ecology O level Biology MCQs with Answers PDF Download: MCQ Quiz 9

MCQ: 41

During night, the fresh water is made more acidic due to

  1. onset of photosynthesis
  2. caesura of photosynthesis
  3. onset of respiration
  4. onset of transpiration
MCQ: 42

In any ecosystem, the form of energy that can not be recycled is

  1. light energy
  2. chemical energy
  3. heat energy
  4. mechanical energy
MCQ: 43

Group of organisms of the same species living undefined are/is called

  1. population
  2. community
  3. kingdom
  4. phylum
MCQ: 44

In strong day light, fresh water (H2) is

  1. more alkaline
  2. more acidic
  3. neutral
  4. salty
MCQ: 45

Survival of aquatic organisms only in their environment is an example of

  1. high specialization
  2. less specialization
  3. adaptation
  4. metabolism

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