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Beetles are ____, whereas spiders are arachnids.
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echinoderms
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Sponges are ____ (members of the simplest animal phylum).
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flatworms
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Beavers, squirrels, and chipmunks are ____ (gnawing mammals).
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insects
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Kangaroos, koalas, wombats, and opossums are ____.
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marsupials
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Nematodes are roundworms. Flukes and tapeworms are ____.
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myriapods
|
|
Sand dollars, sea urchins, and starfish are ____.
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poriferans
|
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The modern human species is classified as Homo ____.
|
rodents
|
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Centipedes and millipedes are ____ (a subphylum of arthopods).
|
sapiens
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