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 l9+;gt9 gv1 ;h w qrpbajpap13living organisms, are very small. Wh ( b 0b,y+b2ex)jdeq:tf)jl ivich other characteristic listed below distib y+t b vbjd:x2je ,eflq0))(inguishes viruses from 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 viru 8d;b*uqjb*5h4os n6u kn sco+ses includes the presence of a capsid, which surrounds the genetic material (Choice D). Both viruses and living organisms contain genets*5 h8ukb+c;noj n 6b u*od4qsic material (Choice A). Unicellular living organisms contain cytoplasm (Choice B). Some viruses lack enzymes, but not all viruses lack enzymes (Choice C).
| 
