11th Class Biology Sample Paper Biology Sample Paper-1

  • question_answer
    Select the correct statements among the following (i-iv) regarding the characteristics of certain organisms.
    (i) Methanogens are archaebactria which produce methane in marshy areas.
    (ii) Nostoc is a filamentous blue ?green alga which fixes atmospheric nitrogen.
    (iii) Mycoplasma lack a cell wall and can survive without oxgen

    A)  (ii) and (iii)         

    B)           (i) and (ii)

    C)  (ii), (iii) and (iv)   

    D)           (i), (ii) and (iv)

    Correct Answer: C

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