Biology: Genetics Unit Vocabulary - bcps.org Web viewWord. Definition. Word Part. Visual. 1. 10%...

TR.VOCAB.5AECOLOGY UNIT VOCABULARY CHART

WordDefinitionWord PartVisual1. 10% rule

Only 10% of the available energy from one trophic level transfers up to the next

2. abiotic factorNon-living factor in an ecosystemA=not, bio=living

3. acid rainPrecipitation with a pH less than 7

2009 203 Biology Reteaching Resource


4. autotrophAn organism that makes its own food. Ex: plants, algae and types of bacteriaAuto=self, troph=feeding

5. biomassAmount of living tissue within a given trophic levelBio=living

6. biomeGroup of ecosystems that have the same climate and dominant communitiesBio=living

7. biotic factorA living component of an ecosystemBio=living



8. carbonElement that is the basis of all life on Earth

9. carbon cycleThe route carbon travels through the environment, includes the cyclic relationship between photosynthesis and cellular respiration. Increase in CO2 due to burning of fossil fuels

10. carnivoreMeat eaterCarne=meat, vor=eat

11. carrying capacityLargest number of organisms a given environment can support



12. commensalismSymbiotic relationship where one organism benefits and the other is not affected Commensal=eating at the same table

13. communityDifferent populations living together in a given area

14. competitionWhen organisms compete for limited resources like space, food, and water

15. consumerAn organism that obtains its energy from eating plants or animal, heterotrophConsume=eat



16. decomposerOrganism that breaks down and obtains nutrients from dead organic matter; heterotroph. Examples: bacteria and fungi

17. deforestationDestruction of forests

18. ecologyThe study of interactions between organisms and their environmentEco=home

19. energyA source of usable power (sun,ATP, glucose); moves in one direction in the ecosystem



20. energy pyramidDiagram showing how 10% of the energy transfers from one trophic level to the next, amount of available energy decreases as you go up the pyramid

21. food chainSeries of steps in an ecosystem where organisms transfer energy by eating and being eaten

22. food webComplex diagram showing all possible food chains and feeding relationships in an ecosystem

23. global warming



Increase in average temperatures on Earth

24. habitatAn area where an organism lives, including all abiotic and biotic factors

25. herbivorePlant eaterHerb=plants, vore=eat

26. heterotrophAn organism that cannot make its own food; a consumer or decomposer in a food chainHetero=different, trohph=feed



27. hostOrganism in which a parasite lives in or on

28. limiting factorNutrient in an ecosystem that can be depleted, prevents population growth of organisms in an ecosystem

29. mutualismSymbiotic relationship in which both species benefitMutual=both



30. nicheAn organism’s role in an ecosystem (producer, consumer, heterotroph, etc)

31. nitrogen Element required in living things to build muscle and speed up reactions

32. nitrogen cycleThe path N follows through an ecosystem including the conversion of nitrogen gas into usable nitrates by nitrogen-fixing bacteria

33. omnivoreOrganism that eats both plants and animals2009 211 Biology Reteaching Resource


Omni=all, vore=eat

34. ozone depletionThe breaking up of O3 gas in the atmosphere that blocks harmful ultraviolet radiation

35. parasitismSymbiotic relationship where one organism benefits and the other is (usually) harmed

36. pollutionHarmful materials that could enter into the land, air, or water

37. population2009 212 Biology Reteaching Resource


Group of individuals of the same species living together in a given area

38. predatorAn organism that captures and feeds on another

39. preyOrganism that gets caught and eaten by the predator

40. primary successionWhen species first inhabit an area where no soil exists

42. producerAn organism that makes its own food; examples: plant, algae or autotrophic bacteria



43. scavengerAn organism that feeds on decaying organic matter

44. secondary successionPattern of species replacement following a disturbance in an established ecosystem without disturbing the soil

45. speciesGroup of similar organisms that can breed and produce fertile offspring

46. symbiosisA close association between organisms of two or more species2009 214 Biology Reteaching Resource


Sym=together, bios=living

47. transpirationLoss of water from a plant through its leaves

48. trophic levelA group of organisms that occupy the same position in a food chain.

Troph=feed

49. water cyclePathway water follows through the ecosystem includes condensation, precipitation, run-off, seepage, evaporation and transpiration




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Biology: Genetics Unit Vocabulary - bcps.org Web viewWord. Definition. Word Part. Visual. 1. 10%...

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