Evolution and genetic diversity

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1. What is species richness?

  • Describes the relationship between number of species in a community and the number of individuals of each species
  • The number of different species in an area
  • the variety of species in an area
  • All the organisms of one species in a habitat
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2. How does courship behaviour work?

  • Allow species to recognise each other, stimulate the release of gametes, recognise the opposite sex, indicate sexual maturity
  • Recognise the same species, stimulate release of gametes, kill predators, indicate sexual maturity
  • Recognise the opposite sex only
  • Indicate sexual maturity

3. What do I need to calculate index of diversity?

  • Total number of plants
  • Totals number of organisms of all species, Total number of organisms of each species
  • Total number of organisms of each species, Total number of trees
  • Total number of organisms of all the species, the area of the habitat they live on

4. What is index of diversity?

  • How diverse the place is
  • Describes the relationship between number of species in COMMUNITY AND NUMBER OF INDIVIDULAS OF EACH SPECIES
  • number of different species in ratio to number of populations
  • The species that live in an area

5. What does courtship behaviour do?

  • Prevent predators from attacking
  • Allow species to breed
  • Increase chance of successful mating
  • allow organism to identify each other only
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