|
Most millipedes secrete ____ substances for defense.
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ectothermic
|
|
Most reptiles, amphibians, and fish are ____ (cold-blooded).
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nocturnal
|
|
Mammals are classified as monotreme, marsupial, or ____.
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parasitic
|
|
Corals and sponges are ____ (surface-attached) animals.
|
placental
|
|
The ____ (bottom) shell of a turtle is called the plastron.
|
poisonous
|
|
Most roundworms are free-living. Most flatworms are ____.
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sessile
|
|
Cobras, vipers, scorpions, and centipedes are ____ predators.
|
venomous
|
|
Owls, bats, and crickets are ____ (active at night).
|
ventral
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