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Nat 5 Biology Unit 3

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  • What is "All the organisms in an ecosystem"?
    Community
  • Define niche
    The role an organism plays within its community.
  • A lichen is an example of what?
    Indicator species
  • What is "All the organisms of the same species living in the same area"?
    Population
  • Which type of competition occurs between members of the sAme species?
    IntrAspecific
  • State one of the 3 fates of glucose.
    stored as starch, converted to cellulose (for cell walls), used during respiration
  • give the equation for photosynthesis
    carbon dioxide + water -> glucose + oxygen
  • Name ALL the limiting factors of photosynthesis.
    Temperature, light intensity, carbon dioxide concentration
  • Which product of photosynthesis diffuses out of the plant during stage 1?
    Oxygen
  • Name the form of chemical energy used in photosynthesis.
    ATP
  • Which type of pyramid is always a true pyramid shape?
    Pyramid of energy
  • Which type of competition occurs between members of diffERent species?
    IntERspecific
  • What is "the variety of living things in a defined area"?
    Biodiversity
  • What is "All the organisms living in an environment and the non living components with which the organism interact"?
    Ecosystem
  • Name the pigment that traps light in the light reactions AND state where it is found.
    Chlorophyll, found in chloroplasts
  • Name the diagram that shows the total numbers of organisms at each stage of a food chain.
    Pyramid of numbers
  • Which two substances are created during stage 1 of photosynthesis to be used during stage 2?
    Hydrogen and ATP
  • Name the second stage of photosynthesis.
    Carbon fixation
  • Name the diagram that shows the total energy contained within each stage of a food chain.
    Pyramid of energy
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