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Biology Revision - Coggle Diagram

- - - - related and same trait just exaggerated or maintained
    - - Long term artificial selection
      - Desirable Traits
        
        Sex: Reproduction
        
        Diet
        
        Temperament/ Dispositions: Behaviour of animal- suitable
        
        Social Structure
    - - Unrelated by at least 5 generations and different traits usually selected for.
  - - - Dancing, 'gifts', and courtship space
    - - Courtship dance and abdomen size/colour
    - - Dancing Ability and Colour/size of feathers
    - - singing ability, dance, size and strength/aggression
  - - - Birthrate- All living organisms reproduce at a rate greater than which their resources increase
      - Natural Balance- Despite high birthrate species tend to keep their numbers at a relatively constant rate
      - Variation- All members of a species vary
    - - Survival of the fittest: the organisms with the most favourable characteristics survive, the ones with the less favourable characteristics die before they can reproduce
      - Struggle for existence: Due to the high birthrate and the limited resources there must be a struggle for existence