Consider the statements. I. The phylum-Protozoa was first observed by Anton van Leeuwenhoek. II....

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Consider the statements.
I. The phylum-Protozoa was first observed by Anton van Leeuwenhoek.
II. Protozoans are known as grazers of microbial world.
Choose the correct option.
(A) Statement \( \mathrm{I} \) is true, but II is false
(B) Statement I is false, but II is true
(C) Both statements I and II are true
(D) Both statements I and II are false
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