the most important would be nonpourous skin (skin than is resistant to absorbing water) or fur or feathers that accomplish the same thing. Then there would have to be an efficent way of getting nutrients, if its is difficult to capture or find food, plants or animals ,it is unlikely that the animals would survive. These would be the most important but there could be many others that would help.
Oxygen.
that it survive by water and the sunlight it need.
S-sun W-water A-air N-nutrients
They need their coat and your face
they need to adaped to the rain and shad
they have spines that react to predators
thick soil
to survive on land, plants must have structures that allow them to obtain water and other nutrients from their surroundings, retain water, transport materials in their bodies, and reproduce those are the five adaptations that plants need to survive on land
For plants to survive on land, they must have ways to obtain water and other materials from their surroundings, retain water, transport materials throughout the plant, support their bodies, and reproduce successfully. :D
adaptations: they walk long distances survive without water for a long time and live in hot areas
A way to obtain water, retain water, support themselves, a way to reproduce, and i am pretty sure, not positive, a way to disperse their seeds.
The blue whale has several adaptations that help it survive in its habitat. They include blubber for warmth, a sleek shape for swimming and they never need to sleep.
All animals need water to survive.