Hich term represents animals with backbones? invertebrates
heterotrophs
autotrophs
vertebrates

What element does susan b. anthony include in this passage to strengthen her argument?

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.