The aquatic mammals of the order cetacea are fully water-dwelling, even bearing their young in water.

true
false

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.