Question

anatomical structures, including homologous, analogous, and vestigial structures, can be used as evidence for biological evolution what are analogous structures?
a. structures that are similar as a result of common ancestry
b. structures with little or no function to the organism
c. structures with different evolutionary origins but similar functions
d. structures that perform a different function than is expected

Explanation:

同源结构（homologous structures）是由于共同祖先而相似；痕迹器官（vestigial structures）对生物体功能很小或无功能；类似结构（analogous structures）是不同进化起源但功能相似；D选项描述不符合类似结构定义。

Answer:

C. structures with different evolutionary origins but similar functions