Page 122 - Science Course 3 (Book 1)
P. 122

Mo3-L3a: What is the Evidence for Evolution?




                The fossil record indicates that different species of horses often overlapped with each other







































        Comparative anatomy is the study of similarities                  Key Concept
        and differences among structures of living species.
                                                                   What is the Evidence for Evolution?
                                                            How do homologous structures provide evidence
                                                                            for evolution.














        Homologous structures are body parts of
        organisms that are similar in structure and
        position but different in function.















        The forelimbs of these species are different sizes, but
        their placement and structure suggest common
        ancestry


    114
   117   118   119   120   121   122   123   124   125   126   127