Across
- 4. Group of organisms of the same species that occupy the same space at the same time.
- 5. The horizontal line on a graph
- 7. The total mass of organisms in a given area.
- 10. Portion of a body of water that is shallow enough for sunlight to penetrate.
- 12. Biological community and all the nonliving factors that affect it.
- 14. Non-native species that enter new ecosystems and cause harm to the new area.
Down
- 1. An organism that makes its own food.
- 2. Wetlands formed where rivers meet the sea.
- 3. Any living thing.
- 6. Movement of individuals into a population.
- 8. An organism that gets its energy from the sun (a.k.a. autotrophs/plants)
- 9. A community of organisms where there are several interrelated food chains
- 10. An organism that feeds on a living host.
- 11. The variety of life in a particular habitat or ecosystem.
- 13. The orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region.
- 15. The amount of dissolved salt in a water.