|
Most birds and reptiles are ____ (egg-laying).
|
arboreal
|
|
Mammals are classified as monotreme, marsupial, or ____.
|
ectothermic
|
|
Most roundworms are free-living. Most flatworms are ____.
|
feral
|
|
Sloths, koalas, and most chameleons are ____ (tree-dwelling).
|
oviparous
|
|
Domesticated animals that have returned to the wild are ____.
|
parasitic
|
|
Corals and sponges are ____ (surface-attached) animals.
|
placental
|
|
Most reptiles, amphibians, and fish are ____ (cold-blooded).
|
poisonous
|
|
Most millipedes secrete ____ substances for defense.
|
sessile
|
