Why do you think invertebrates developed before vertebrates?

But we are vertebrates – and so are most of the large, charismatic animals that walk, swim and fly. It is only natural that we find ourselves drawn to what Henry Gee, ... invertebrate relatives are a group of marine animals that includes the ... that during embryo development, our anus forms before our mouth.

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.

the correct answer is b