|
Most mammals and birds are ____ (warm-blooded).
|
aquatic
|
|
Manatees, porpoises, seals, and walruses are ____ mammals.
|
arboreal
|
|
Most reptiles, amphibians, and fish are ____ (cold-blooded).
|
ectothermic
|
|
Mammals are classified as monotreme, marsupial, or ____.
|
endothermic
|
|
Most roundworms are free-living. Most flatworms are ____.
|
migratory
|
|
Corals and sponges are ____ (surface-attached) animals.
|
parasitic
|
|
Arctic terns, caribou, monarchs, and salmon are ____ animals.
|
placental
|
|
Sloths, koalas, and most chameleons are ____ (tree-dwelling).
|
sessile
|
