本题目来源于试卷: HL Topic A2.3 Viruses，类别为 IB生物学
[单选题]
5. Viruses have several kbfhl7w x-l+t/e2m *j9 u v8uifxu0lx +cogz qt*t6t5q(b* 1bd8 p-ewmorms of genetic information but many structural features in common. What does this suggt* (6mcg5+xxupdb 1oe-8qttb*wz l 0qest in terms of their evolution?
A. Divergent evolution from a single common ancestor.
B. Evolution by mutation.
C. Divergent evolution from a single possible origin.
D. Convergent evolution from several possible origins.
参考答案: D
本题详细解析:
暂无
| 
