Related Questions

    1.

    Select the wrong statement.

    A

    Diatoms are microscopic and float passively in water.

    B

    The walls of diatoms are easily destructible.

    C

    ‘Diatomaceous earth’ is formed by the cell walls of diatoms.

    D

    Diatoms are chief producers in the oceans.

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    8.

    The chief advantages of encystment of an Amoeba is

    A

    Protection from parasites and predators

    B

    The chance to get rid of accumulated waste products

    C

    The ability to survive during adverse physical conditions

    D

    The ability to live sometime without ingesting food

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