21. The five-kingdom system of classification was set up by
A. Louis Pasteur
B. Robert Whittaker
C. Robert Koch
D. Masaki Ogata
22. The membranes of which domains are chemically the most similar?
A. Archaea and Bacteria
B. Bacteria and Eukarya
C. Eukarya and Archaea
D. membranes of all three domains are chemically identical
23. Primary differences between cilia and flagella are
A. arrangement of microtubules
B. length and location of basal bodies
C. how the microtubules are fused to each other
D. number, length and direction of force
24. All membranes of free-living organisms have phospholipid bilayers, but exception is
A. bacteria
B. fungi
C. archaea
D. protozoa
25. All of the following are features of prokaryotes except
A. nitrogen fixation
B. photosynthesis
C. sexual reproduction
D. locomotion
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