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[A] : Contractile vacuoles in protists s...

[A] : Contractile vacuoles in protists show systole and diastole .
[R] : Contractile vacuoles help in osmoregulation .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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Knowledge Check

  • Contractile vacuoles take part in

    A
    absorption of water from outside
    B
    osmoregulation
    C
    excretion
    D
    both b and c

  • Contractile vacuole in Amoeba helps in

    A
    Osmoregulation
    B
    Excretion
    C
    Digestion
    D
    Both (1) & (2)

  • Contractile vacuole is analogous to

    A
    Sweat gland
    B
    Kidneys
    C
    Seminiferous tubule
    D
    Nerve fibre

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