Consider the evolution of protostomes (chapter 31) and deuterostomes (this chapter):
(1) compare adaptations in protostomes and deuterostomes for living on land.
(2) recall that changes in the expression patterns of tool-kit genes in arthropods such as insects enabled a dramatic diversification of their segmented appendages and bodies. design an experiment to test whether this concept applies to vertebrates.

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videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.