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Biology: Animal Facts

Mammals are classified as monotreme, marsupial, or ____. aquatic
Sloths, koalas, and most chameleons are ____ (tree-dwelling). arboreal
Most mammals and birds are ____ (warm-blooded). ectothermic
Corals and sponges are ____ (surface-attached) animals. endothermic
Most reptiles, amphibians, and fish are ____ (cold-blooded). migratory
Manatees, porpoises, seals, and walruses are ____ mammals. nocturnal
Owls, bats, and crickets are ____ (active at night). placental
Arctic terns, caribou, monarchs, and salmon are ____ animals. sessile