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Biology - section - 2
  1. Example of a single celled organism.

    2. A.

     Algae
    B.

     Amoeba
    C.

     Paramaecium
    D.

     All of the above

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  2. Chlamydomonas prefers water rich in

    3. A.

     Ammonic compounds
    B.

     Uric acid compounds
    C.

     Sulphur compounds
    D.

     Urea compounds

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  3. The number of pyrenoids in a cell of Spirogyra is

    4. A.

     1
    B.

     2
    C.

     3-5
    D.

     Numerous

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  4. Nuclear membrane is absent in

    5. A.

     Volvox
    B.

     Penicillium
    C.

     Agaricus
    D.

     Nostoc

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  5. Microscopic organism which passively float on the surface of water is called

    6. A.

     Phytoplanktons
    B.

     Zooplanktons
    C.

     Both (a) and (b) both
    D.

     None to these

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  6. Which among the following does not have a cell wall?

    7. A.

     Euglena
    B.

     Paramecium
    C.

     Gonyaulax
    D.

     Mycoplasma

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  7. The ability to fix atmospheric nitrogen is found in the

    8. A.

     Leaves of some crop plants
    B.

     Some marine red algae
    C.

     Some blue-green algae
    D.

     Cholera

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  8. The number of chloroplasts in a cell of Spirogyra is

    9. A.

     1-4
    B.

     1-8
    C.

     1-14
    D.

     2-8

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  9. 'Pond silk' is the common name of

    10. A.

     Spongilla
    B.

     Chlorella
    C.

     Selaginella
    D.

     Spirogyra

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  10. Potato blight is caused by

    11. A.

     Penicillium
    B.

     Meningitis
    C.

     Smut
    D.

     Ringworm

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