15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 2)

Why are protozoans classified as animals? (A) They do not live on simple organic compounds. (B) They collect in colonies. (C) They respond uniformly to outside stimulate. (D) They may

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Why are protozoans classified as animals?

(A) They do not live on simple organic compounds.

(B) They collect in colonies.

(C) They respond uniformly to outside stimulate.

(D) They may have more than one cell.

Giải thích

Đáp án A

(1) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they do not live on simple organic compounds