Across
- 1. consist of all food chains in on ecosystem
- 3. a hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas
- 5. the plant and animal life of a particular region or period.
- 6. the action or process of depositing sediment
- 7. plants animals and other organisms work together to create a bubble of life.
- 10. the saltiness or amount of salt dissolved in a body of water
Down
- 1. one organism eat another organism
- 2. place or environment where a plant or animal naturally or normally lives and grows.
- 4. all the kinds of life you can find in one. area, the extent or measurement of a surface or piece of land.
- 8. the base on which an organism lives or over which it moves
- 9. an area classified according to the species that live in that location.