The word “they” in paragraph 3 refers to A. protozoans B. microscopes C. investigations D. colonies
The word “they” in paragraph 3 refers to
A. protozoans
B. microscopes
C. investigations
D. colonies
The word “they” in paragraph 3 refers to
Đáp án A
(1) Protozoans are considered animals because, unlike pigmented plants to which some protozoans are otherwise almost identical, they (protozoans) do not live on simple organic compounds