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Sloths, koalas, and most chameleons are ____ (tree-dwelling).
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arboreal
|
|
Corals and sponges are ____ (surface-attached) animals.
|
endothermic
|
|
Most roundworms are free-living. Most flatworms are ____.
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migratory
|
|
Most birds and reptiles are ____ (egg-laying).
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oviparous
|
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Most mammals and birds are ____ (warm-blooded).
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parasitic
|
|
The ____ (bottom) shell of a turtle is called the plastron.
|
poisonous
|
|
Arctic terns, caribou, monarchs, and salmon are ____ animals.
|
sessile
|
|
Most millipedes secrete ____ substances for defense.
|
ventral
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