A bacterium and amoeba are placed in different domains because

A. a bacterium is single-celled
B. an amoeba is photosynthetic
C. an amoeba can move
D. a bacterial cell is much simpler

D a bacterial cell is more simple bacterial cells lack a nucleus (prokaryotic) whereas an amoeba cell has one (eukaryotic)

Answered by web | 2024-06-10

The correct answer is D. The domain is the broadest category in the classification of living organisms. All the living organisms are placed in three domains, which are archaea, bacteria and eukaryotes. The prokaryotes are separated into two groups, that is archaea and bacterial based on the differences in their 16S rRNA genes. Amoeba is classified as an eukaryotes because, its cell is more developed than that of bacteria.

Answered by Erudite1 | 2024-06-11

Bacteria and amoebas are placed in different domains primarily because bacteria are prokaryotic and simpler in structure, while amoebas are eukaryotic and more complex. Bacteria lack a nucleus, whereas amoebas contain one. Thus, option D, 'a bacterial cell is much simpler,' is correct.
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Answered by web | 2024-10-02