Question

    What is the most basic criteria used to decide whether

    something is alive?
    A Walking Correct Answer Incorrect Answer
    B Breathing Correct Answer Incorrect Answer
    C Molecular movements Correct Answer Incorrect Answer
    D Life processes Correct Answer Incorrect Answer

    Solution

    Mostly, any kind of visible movement such as breathing, walking or growing is referred to decide if something is alive or not. But, a living organism may have movements not visible to the naked eye. Thus, it is the presence of life processes that is the basic criteria to decide whether something is alive or not. Hence, option D is correct. 

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