In bacterial categories the bacteria smaller in number are_______________?
Correct answer: C. Ancient bacteria
- A. Gram-ive bacteria
- B. Eubacteria
- C. Ancient bacteria
- D. Gram +ive bacteria
Explanation
Ancient bacteria, or archaea, represent a much smaller and more specialized group than the broad group of eubacteria in traditional classifications. The likely alternative is Gram-positive bacteria, but Gram-positive and Gram-negative are cell-wall categories, not the major-versus-minor evolutionary groups intended here.
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About Prokaryotic and Eukaryotic Cells
Prokaryotic cells lack a membrane-bound nucleus and complex membrane-bound organelles, whereas eukaryotic cells contain a nucleus, specialized organelles and a cytoskeleton. Comparisons include DNA organization, ribosomes, cell walls, size, division and examples such as bacteria, archaea, protists, fungi, plants and animals.
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