Ecology
Across
- 2. On land, succession that occurs where no soil previously existed is called ____________ succession.
- 4. Living factors that can affect an ecosystem
- 7. nonliving factors that can affect an ecosystem
- 8. a place where a particular population lives and includes biotic and abiotic factors.
- 11. The first species to populate the area
- 13. a group of individuals similar to one another that can breed and create fertile offspring.
- 15. Succession is typically slow, but __________ ____________ or human disturbances can make sudden changes.
- 17. the law that every organism relies on other organisms to survive
- 19. the portion of the planet that can sustain life and all of its interactions.
Down
- 1. a group of organisms of one species that interbreed and live together within a defined area.
- 3. plants and ________ are biotic (living) things that affect an organism.
- 4. the variety of organisms, the organisms genetic differences, and the ecosystems in which they occur.
- 5. groups of populations comprised of many species that live together in a defined area.
- 6. large area that has a particular climate, and particular species of plants and animals that live there
- 9. all the living and nonliving factors in a particular place and can be small or large.
- 10. Succession that occurs in areas where soil exists, but has been damaged or disturbed
- 12. The German biologist who came up with the term “ecology”, as he viewed nature as a house with its own economy.
- 14. soil, _________, natural disasters, climate are all abiotic (non-living) factors that affect an organism.
- 16. A regular progression of species of replacement over time
- 18. The scientific study of interactions among organisms with each other and with the environment.