Across
- 2. the types and numbers of species in an area
- 3. All of the organisms of the same species in the same area
- 5. each step in a food chain represents a _______ level
- 6. Some bacteria live on human skin and eat dead skin cells, humans are not harmed
- 8. Burning fossil fuels releases ________ into the environment
- 12. Animals breathe out CO2 and water as waster products of ____________
- 14. A crocodile and lion compete for food resources
- 16. Bodies of water may experience algae blooms when they are enriched with large amounts of nitrogen from fertilizer
- 18. The physical area where an animal lives
- 20. A consumer that eats decaying material
- 21. the process in which nitrogen is taken from the air and converted into usable forms (thanks bacteria!)
- 22. No two species can occupy the same niche
- 24. Organisms like otters that support biodiversity in their ecosystem
Down
- 1. Disease and competition for food are _________ factors
- 3. A process that removes CO2 from the atmosphere
- 4. Tape worms live in the gut of their host and steal nutrients
- 7. A population growing under limiting conditions shows _____ growth
- 9. the number of individuals an environment can support
- 10. The acacia ant protects the acacia tree and in turn gets a food source
- 11. Organisms that eat other organisms for their energy
- 13. An species role in its environment
- 15. all of the living organisms that interact in an environment
- 17. Autotrophs, like plants and algae are also called
- 19. Humans have introduced the lion fish to marine ecosystems in florida
- 23. describes movement out of a population