Across
- 5. ability of an ecosystem to maintain biodiversity and production indefinitely.
- 6. to maintain the natural state of an ecosystem.
- 9. different forms of a gene
- 10. environment that provides the things a specific organism needs to live and grow
- 12. nonliving parts of an organisms habitat.
- 15. a plants growth response toward or away from a stimulus
- 17. chemical released by one animal to attract another
- 20. source of penicillin
- 21. coming into
- 23. help with neurological disorders
- 25. chemicals that affect growth and development
- 27. a response to a stimulus
- 28. biodiversity has both economic and ecological
Down
- 1. series of events in which one organism eats another and obtains energy.
- 2. a maple tree
- 3. process of a gas changing to a liquid.
- 4. any relationship where two species live closely together.
- 7. process where well suited individuals in an environment tend to survive.
- 8. something that provokes or cause an action or response
- 11. major body changes as they grow into adults.
- 13. obtains energy by feeding on other organisms.
- 14. regular seasonal journey of an animal from one place to another.
- 16. series of predictable changes that occur in a community over time.
- 18. the disappearance of all members of a species from earth.
- 19. a type of stimuli
- 22. ferns and cedar trees rely on for fertilization
- 24. consumers that eat only plants.
- 26. the study of how organisms interact with their environment.