1.Population-the people who inhabit a territory or state

2.community-a group of people living in the same place or having a particular characteristic in common.

3.biome-a complex biotic community characterized bydistinctive plant and animal species andmaintained under the climatic conditions.

Cutting down trees in the rain forest will affect lots of snakes and birds they will not have any were to live so they would git eaten soon.