Read the following statements carefully: A. Homology indicates common ancestry. B. Wings of butterfly and of birds are homologous structures. C. Thorns of Bougainvillea and tendrils of Cucurbita represent divergent evolution. D. Sweet potato and potato are the result of divergent evolution. How many of the above statements are correct?

Step-by-step solution

Statement A is correct because homology is based on common ancestry. Statement B is incorrect because wings of butterfly and of birds look alike and perform the same function but are not anatomically similar. They are analogous structures. Statement C is correct because thorns of Bougainvillea and tendrils of Cucurbita are both modifications of axillary buds (homologous structures), which represent divergent evolution. Statement D is incorrect because sweet potato (root modification) and potato (stem modification)