Many animals like the polar bear have become due to human impact on the environment. If nothing is done these animals will soon die out.
Animals and plants who have completely died out are considered .
The amount of animals left in a particular species is called a population.
Human activity often changes or destroys an animal’s habitat which they need to survive.
A _______________is the natural environment of an organism; place that is natural for the life and growth of an organism.
Habitat
Resource
Dependent
Population
When animals are extinct we can bring them back and start a new population.