INFOGRAPHIC 19.4 EVOLUTION OF ANIMAL DIVERSITY
All animals have descended from a common ancestor. Many features help classify animals, including body symmetry, type of body support, and the presence or absence of a spinal cord and backbone. In addition, genetic sequencing and the study of embryonic development have informed this phylogenetic tree.
All animals have descended from a common ancestor. Many features help classify animals, including body symmetry, type of body support, and the presence or absence of a spinal cord and backbone. In addition, genetic sequencing and the study of embryonic development have informed this phylogenetic tree.
