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Questions and Answers
What is the common evidence for being alive mentioned in the text?
Why do some think plants are alive?
Which organisms raise the controversy about being truly alive or not?
What is the defining characteristic of life according to professional biologists?
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Why is there controversy about whether viruses are truly alive?
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Is the visibility of movement a sufficient characteristic to define life?
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What can be invisible but necessary for life according to the text?
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What characteristic of viruses contributes to the debate on their classification as living organisms?
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