A unicellular organism P lives in pond water. The organism P has no fixed shape, its shape keeps on changing. It moves and catches its prey with the help of organs Q which keep on appearing and disappearing. The organism P reproduces by a process R.

Another organism S also reproduces by this process. Name P, Q, R and S.

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Solution

P: Amoeba;

Q: Pseudopodia;

R: Binary fission;

S: Paramecium

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P: Amoeba; Q: Pseudopodia; R: Binary fission; S: Paramecium

P: Amoeba;

Q: Pseudopodia;

R: Binary fission;

S: Paramecium