Across
- 2. linear sequence of links in a food web starting from a trophic species
- 7. the study of relationships that living organisms have with each other and their environment
- 9. heterotophs that obtain nutrients by consuming decomposing plant and animal parts
- 10. a living or once living component of a community
- 11. long term interaction between two or more different biological species
- 12. the degree of variation of life forms
- 14. a class of relationship between two organisms where one benefits without affecting the other.
- 16. a biological interaction where a predator feeds on its prey
- 17. a plant that is able to produce its own food from inorganic substances
- 19. organisms that break down dead or decaying organisms
- 21. maximum population size of the species in an environment
- 23. position of occupation in a food chain
- 28. symbiotic interaction between different species that is mutually beneficial
- 29. a community of living things in conjunction with non living things
Down
- 1. the organisms of the same species that live in the same area
- 3. an ecological or environmental area that is inhabited by a particular species of an animal plant or other type of organism
- 4. non living chemical and physical factors in environments
- 5. a trait with a current functional role in the history of an organism that is maintained and evolved by means of natural selection
- 6. climatically and geographically climatic conditions on Earth
- 8. process of change in the species structure of an ecological community over time
- 9. when population growth rates are regulated by the density of a population
- 13. causes a population to decrease in size
- 15. biological material from living or recently living things
- 18. meat eater
- 20. final users of products or services
- 22. an organism that makes its own food
- 24. plant and meat eater
- 25. plant eater
- 26. a group of interacting living organisms
- 27. the relational position of an organisms species