|
Most millipedes secrete ____ substances for defense.
|
aquatic
|
|
Arctic terns, caribou, monarchs, and salmon are ____ animals.
|
ectothermic
|
|
Mammals are classified as monotreme, marsupial, or ____.
|
feral
|
|
Owls, bats, and crickets are ____ (active at night).
|
migratory
|
|
Domesticated animals that have returned to the wild are ____.
|
nocturnal
|
|
Most roundworms are free-living. Most flatworms are ____.
|
parasitic
|
|
Most reptiles, amphibians, and fish are ____ (cold-blooded).
|
placental
|
|
Manatees, porpoises, seals, and walruses are ____ mammals.
|
poisonous
|
