本题目来源于试卷: Unity and Diversity A.5 Viruses，类别为 IB生物学
[单选题]
Viruses, compared to lika,gtj a:x/ z-ving organismse91bmdn /3:qh 2 rbrba, are very small. Which other characteristic listed below distinguishes viruses from2dbr3mhe9:qrbn1 /a b unicellular living organisms?
A. Contain genetic material
B. Contain cytoplasm
C. Lack enzymes
D. Genetic material is surrounded by a capsid
参考答案: D
本题详细解析:
Choice D is correct because The structure of all viru2 ae u .0qswflt:/ory*ncp* i1gm;3jh ses includes the presence of a capsid, which surrounds the genetic material (Choice D). Both viruses and living organisms contain genetic material (Choice A). Unicellular living organisms contain cytoplasm (Choice B). Some vir./*qg;miucphoe* 0fjyn 3w1:rtl2sa uses lack enzymes, but not all viruses lack enzymes (Choice C).
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