Smarty Pants Quiz
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What do scientists call animals that don't have backbones?
Vertebrates
Invertebrates
Nonvascular
Heterotroph
Wrong! Try again!
Invertebrates include a wide variety of animals such as worms, sponges, clams, scallops, lobsters, and grasshoppers. The vast majority of animal species are invertebrates.
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09
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What do scientists call animals that don't have backbones?
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