Which characteristic is common among vertebrates?
supported by an exoskeleton
breathe with lungs or gills
make own food
eat with teeth
breathe with lungs or gills
Which characteristic is common to a starfish and snail?
both are the same size
both are echinoderms
both are mollusks
both are invertebrates
both are invertebrates
Which characteristic distinguishes animals from plants?
Animals reproduce.
Plants are made of cells.
Animals consume other organisms.
Plants evolve through natural selection.