Read the following statements carefully: (A) Ernst Haeckel proposed embryological support for evolution by observing that embryos of all vertebrates develop a row of vestigial gill slits. (B) Karl Ernst von Baer supported Haeckel's proposal by concluding that embryos pass through the adult stages of other animals. (C) Thorns of Bougainvillea and tendrils of Cucurbita represent divergent evolution. (D) Sweet potato an

Step-by-step solution

Statement (A) is correct as Ernst Haeckel proposed embryological support based on features like vestigial gill slits common to vertebrate embryos. Statement (B) is incorrect because Karl Ernst von Baer disapproved Haeckel's proposal, noting that embryos never pass through the adult stages of other animals. Statement (C) is correct because thorns of Bougainvillea and tendrils of Cucurbita are homologous structures, which arise due to divergent evolution. Statement (D) is incorrect because sweet potato (root modifica