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Principles of Ecology Name _________________________ Class _________ Date _________ 1. Define Ecology: 2. Biotic Factors Definition:___________________________________________________________________________________ Examples:___________________________________________________________________________________ 3. Abiotic Factors: Definition:___________________________________________________________________________________ Examples: ___________________________________________________________________________________ 4. Define Biosphere: 5. List the Ecological Levels of Organization from smallest to largest: _______________________ ______________________ _________________________ ___________________ __________________________ ____________________________ 6. Organism Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 7. Population Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 8. Community Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 9. Ecosystem Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 10. Biome Definition:___________________________________________________________________________________ Example:____________________________________________________________________________________ 11. We have already covered Biomes in class. Check to confirm that the information you have written on those sheets is correct. 12. Define Habitat: 13. Define Niche: 14. Limiting Factors Definition:___________________________________________________________________________________ Examples:___________________________________________________________________________________ 15. Define Carrying Capacity: 16. Density Independent Factors: Definition:___________________________________________________________________________________ Examples:___________________________________________________________________________________ 17. Density Dependent Factors: Definition:___________________________________________________________________________________ Examples:___________________________________________________________________________________ 18. Define Ecological Succession: 19. What are the two types of Ecological Succession? 1. ___________________________________________ 2. ___________________________________________ 20. Primary Succession takes place on exposed, bare rock which lacks a ____________________. 21. Usually follows a _________________________________ or ____________________________________________. 22. Primary succession begins with a _________________________ species such as ____________________________________________. 23. Secondary Succession takes place in a newly cleared area, ________________________ remains. 24. Usually follows a ______________________________ or ______________________________________________. 25. Define Competition: 26. Define Predation: 27. Define Symbiosis: 28. Fill-in the follow table: Type of Symbiotic Relationship Smiley Faces Definition Example Mutualism Commensalism Parasitism 29. Autotrophs AKA:_____________________________ Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 30. Heterotrophs AKA: ____________________________ Definition:___________________________________________________________________________________ Example:___________________________________________________________________________________ 31. Define Herbivore:_____________________________________________________________________ 32. Define Carnivore:______________________________________________________________________ 33. Define Omnivores:_____________________________________________________________________ 34. Define Detrivores/Scavengers:_____________________________________________________________________ 35. Define Decomposers:_____________________________________________________________________ 36. Each step in a food web and food chain is known as a ________________________________________. 37. List the tropic levels: 1st Level= ________________________________________ 2nd Level= ________________________________________ 3rd Level= _________________________________________ 4th Level= _________________________________________ 38. Define Food Webs: 39. Food webs are made up of simple ______________________________________. 40. Define Food Chains: 41. At each tropic level ________________% of energy is lost. Which means ________% of energy is passed on. 42. What group has the most energy available? Where does this energy come from? 43. Top carnivores have less available energy . What is the size of their population? 44. Fill-in the Energy Pyramid below