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Kangaroos, koalas, wombats, and opossums are ____.
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annelids
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Scorpions, spiders, tarantulas, and ticks are ____.
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arachnids
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Earthworms and leeches are ____ (segmented worms).
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canines
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Beetles are ____, whereas spiders are arachnids.
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echinoderms
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Sand dollars, sea urchins, and starfish are ____.
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flatworms
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Sponges are ____ (members of the simplest animal phylum).
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insects
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Nematodes are roundworms. Flukes and tapeworms are ____.
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marsupials
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Wolves, dogs, coyotes, foxes, and jackals are ____.
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poriferans
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