Classification and Biodiversity

  • Created by: xLunaxx
  • Created on: 20-11-18 18:59
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  • Classification and Biodiversity
    • The most familiar living things fall into groups:
      • Plants- flowering and non-flowering
      • Animals- vertebrates and invertebrates
    • Scientists classify living things into groups which have similar features and characteristics
      • It makes it easier to identify organisms
      • It helps scientists communicate well with each other.
    • Adaptation to the Environment
      • Morphological Adaptations- These are structural adaptations of the organism, such as colour of fur, petal shape and so on.
      • Behavioural Adaptations- These include what time of day the animal is active, or food it eats.
      • Other adaptations include: camouflage, climate (thick fur, small ears etc), catching prey/ avoiding prey.
    • The needs of living organisms
      • Light- plants make food for energy
      • Food- animals for energy
      • Water- for chemical reactions that take place in cells.
      • Oxygen- for all organisms that respire aerobically
      • Carbon dioxide- for plants
      • Minerals- specific minerals are needed for particular chemical reactions.
    • Competition for Resources
      • Competition takes place between members of the same species
      • Competition puts a limit on the potential size of a population.
      • Competition only occurs when a particular factor, e.g food is limited
    • Biodiversity is the number of different species in a particular area. Biodiversity is a good thing, for a number of reasons:
      • It leads to stable environments
      • Habitats which have great variety and number of animals are also more interesting to humans
      • Many important medicines have been developed because of it


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