Statement 1: Vital functions like digestion, nutrition, reproduction, etc., in amoeba are carried out by a single cell.
Statement 2: Unicellular organisms consist of a single cell.
A
Only statement 2 is correct.
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B
Both the statements are incorrect.
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C
Only statement 1 is correct.
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D
Both the statements are correct.
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Solution
The correct option is D Both the statements are correct. Unicellular organisms like amoeba and paramoecium are made up of single cell. All the vital functions like nutrition, digestion, excretion and reproduction are carried out by that single cell. Any injury to this cell can be fatal and can lead to the death of the organism.