Across
- 5. non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems
- 11. species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted
- 13. animals that only eat plants
- 14. a biological community of interacting organisms and their physical environment
- 18. something that prevents a population from growing
- 20. an organism that produces its own food/energy through simple substances and processes
- 22. all the organisms of the same group or species, which live in a particular geographical area
- 23. a group or association of populations of two or more different species occupying the same geographical area and time
- 25. a process used by plants and other organisms to convert light energy into chemical energy
- 27. a relationship between species where one organism benefits and the other organism is harmed
- 28. an association between two organisms in which one benefits and the other derives neither benefit nor harm.
- 30. an animal that eats food of both plant and animal origin
Down
- 1. the natural home or environment of an animal, plant, or other organism
- 2. any living component that affects another organism or shapes the ecosystem
- 3. a change or the process of change by which an organism or species becomes better suited to its environment.
- 4. the regions of the surface, atmosphere, and hydrosphere of the earth
- 6. the process by which the structure of a biological community evolves over time
- 7. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
- 8. organism's role in an ecosystem
- 9. the preying of one animal on others.
- 10. an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon such as plant or animal matter
- 12. a community of plants and animals that have common characteristics for the environment they exist in
- 15. the maximum population size of the species that the environment can sustain indefinitely
- 16. an animal that feeds on flesh.
- 17. when a body of water becomes overly enriched with minerals and nutrients
- 19. the action of breathing
- 21. the ecological interaction between two or more species where each species has a net benefit
- 24. a substance that takes part in and undergoes change during a reaction
- 26. animal that feeds on dead plant or animal material
- 27. the species formed from chemical reactions
- 29. interaction between two different organisms
