Multiple choice

Which of the following options is the smallest basic unit of life in living organisms?

  1. Compound

  2. Cell

  3. Nucleus

  4. Mitochondria
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B Correct answer
Explanation

The smallest basic unit of life in living organisms is the one, which is able to perform all the functions of life independently, i.e. the cell. Nucleus and mitochondria are cell organelles which cannot independently carry the functions of life. Compound is a substance made by chemical combination of the atoms. 

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