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The defining feature of life forms is said to be:

ABeing able to move fast
BHaving a green colour
CCellular organisation
DHaving a large size
Answer & Solution
Correct answer: C. Cellular organisation
1. Growth and reproduction fail as universal definitions. 2. Metabolism happens only inside organised cells. 3. So cellular organisation defines life. _Source: syllabus Biology, Chapter 1, The Living World._
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