Food, Water and protection from the sun.
They basically do what humans do to survive. Like humans need to eat to survive and we also need to sleep to survive.
Orcas require an ocean to survive and could not live in a barren desert.
To survive
you need to be able to climb trees
Yes.
cause we do
yes
fish
coz it does
Beacause there are not enough resources in the ecosystem,organisim must struggle with one another to things they need to survive
A polar bear would need to adjust a lot of things in order to survive in a desert. Without air conditioning, or millions of years to evolve, a polar bear would likely die in the new environment.
Depends what environment it is in.