ecosystems

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KaZuma_t3
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196297
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ecosystems
Updated:
2013-01-29 08:22:37
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ecosystems
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ecosystems
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  1. the relationship between biotic and abiotic factors in an area
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem
  2. the destruction of a natural ecosystem either by humans or by natural disasters
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem degradation
  3. restoring a damaged ecosystem
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem regeneration
  4. an animal that feeds on other animals
    carnivores
    herbivores
    omnivores
    carnivores
  5. an animal that eats plants
    carnivores
    herbivores
    omnivores
    herbivores
  6. an animal that eats plants and animals
    carnivores
    herbivores
    omnivores
    omnivores
  7. an organism that uses the sun's energy to make its own food
    autotrophs and producers
    hetertroph or consumer
    abiotic
    autotrophs and producers
  8. consume others
    producers
    consumers
    abiotic
    consumers
  9. the non-living components of an ecosystem
    producer
    consumer
    abiotic
    abiotic
  10. the living components of an ecosystem
    biotic
    decomposers
    niche
    biotic
  11. recycle dead or decaying mater back into usable components
    decomposers
  12. where in the ecosystem a species lives
    niche
  13. a community of organisms where each member is eaten in turn by another member
    food chain
  14. a complex of interrelated food chains in an ecological community, also called food cycle
    food web
  15. any factor that prevents a population from increasing or decreasing
    limiting factor
  16. all the populations that live together in the same place
    community
  17. the number of organisms of the same species living in a given area
    population
  18. moving into an area
    immigration
  19. moving out of an area
    emigration
  20. direct decrease of species
    death rate
  21. direct increase of species
    birth rate
  22. any factor that only affects a population based on size and more intense as the population increases
    density dependent factors
  23. the entire species has died off
    extinct
  24. a species that has been eliminated from a particular area, but still exists somewhere else
    extirpated
  25. any species that is likely to become endangered if factors that make it vulnerable are not reversed
    threatened
  26. any species that is at risk because of low or declining numbers at the fringe of its range or in some restricted areas
    vulnerable
  27. an introduced species that out-competes native species for space and resources
    invasive species
  28. why do they say that the health of a frog species is a good indicator of the overall health of the ecosystem
    • Frogs are an essential part of a food web,  As amphibians, frogs spend their juvenile
    • lives as aquatic species in waterways and as adults live on line around
    • waterways.  Because they are in two
    • distinct niches, they are more susceptible to pollution, habitat loss and other
    • forms of ecosystem degradation.

     
  29. how would poor reproductive success lead a species to extinction
    declining numbers until the species in no longer able to mate
  30. how could change in climate lead to species to extinction
    not able to adapt to changes quickly enough
  31. how could hunting by humans lead to a species extinction
    declining numbers until the species is no longer able to mate
  32. any factor that affects a population no matter what its size
    density independent factors
  33. any factor that affects a population based on size and more intense as the population increase
    density dependent factors
  34. what is an example of a density dependent factor
    when 2 species compete for the same area
  35. what is an example of a density independent factor
    a severe flood destroys an area
  36. list some abiotic factors in a pond ecosystem
    8
    • rocks
    • water
    • air
    • temperature
    • sunlight
    • precipitation
    • humidity
    • pH of the water
  37. list some biotic factors in a forest ecosystem
    pine trees, moss, insects, bacteria, fox, squirrel, bear, birds
  38. how can humans lead to ecosystem degradation 4
    • habitat destruction
    • climate change
    • releasing pollution/toxins
    • overfishing
  39. what are ways to be more environmentally friendly 5
    • protect our land and water resources
    • reduce pollution
    • don't build on arable land 
    • eat local, avoid over-fishing and meat consumption
    • stabilize human population growth
  40. the ability of producers to make their own food using sunlight, and energy, and creating oxygen
    photosynthesis
  41. the opposite reaction to photosynthesis, using oxygen created by plants and converting it into carbon dioxide and energy
    cellular respiration
  42. why are photosynthesis and cellular respiration considered to be in balance in the carbon cycle
    they are considered to be in balance in the carbon cycle because plants produce what heterotrophs need to survive, and hetertrophs produce what plants need to survive
  43. 3 ways how nitrogen is fixed
    • fixed by lightning
    • fixed by bacteria in roots of legumes into nitrates
    • fixed by bacteria that can convert animal waste containing ammonia into nitrates
  44. make a diagram of a food chain and label, primary consumer, secondary consumer, producer
  45. make a diagram of the carbon cycle
  46. make the phosphorus cycle
    • phosphate in rock
    • phosphate ions in water-taken up by plants
    • phosphates in animals
    • decompose-bones, teeth, waste-phosphate forms rock
    • phosphate runoff to oceans-in plants and animals
  47. what is the role of nitrogen-fixing bacteria
    healthy growth
  48. the process by which bacteria who work without oxygen convert
    denitrification
  49. increasing slowly
    lag phase
  50. increasing faster
    exponential growth phase
  51. birth rate = death rate
    stationary phase
  52. decrease quickly
    death phase

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