9th Class Science The Fundamental Unit of Life

  • question_answer 19)
     Which of the following can be made into crystal? (a) A bacterium                 (b) An Amoeba                 (c) A virus                            (d) A sperm

    Answer:

    (c) Viruses are considered as an intermediate between living and non-living cells because they cannot metabolite and reproduce on their own. They can reproduce only when enters in a host's body. They are an exception to cell theory. A virus crystal is a collection of thousands of viruses. A viral crystal is a pore collection used for chemical studies.


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