Across
- 4. When too many organisms of one species live in an area that does not have enough resources
- 5. The seasonal movement of animals from one place to another to find food or warmer weather
- 6. All the different populations of plants and animals living and interacting together in one area
Down
- 1. The cutting down or clearing of trees and forests in a large area
- 2. A period of inactivity or rest when a plant or animal conserves energy during harsh seasons
- 3. The permanent dying out or complete disappearance of an entire species from Earth