A. There are approximately 40,000 species.
B. They are the most primitive forms of animal life.
C. They have a large cell and a smaller cell.
D. They are difficult to observe.
C
Đáp án C
A: (4) Nevertheless, with the current data available, almost 40,000 species of protozoans have been identified.
B: (1) The protozoans, minute, aquatic creatures each of which consists of a single cell of protoplasm, constitute a classification of the most primitive forms of animal life
D: (4) No doubt, as the technology improves our methods of observation, better models of classification will be proposed.
Câu hỏi trên thuộc đề trắc nghiệm dưới đây !
Copyright © 2021 HOCTAP247