Evolution

  1. Define species.
    Group of organisms capable of breeding to produce living, fertile offspring.
  2. What is the binomial naming system?
    • Used to name species in two parts:
    •   genus - generic name
    •   species - specific name
  3. Define classification.
    Process of naming and organising organisms into groups based on their characteristics.
  4. What is molecular phylogeny?
    The analysis of molecular differences in different organisms to determine their extent of evolutionary relatedness.
  5. Why is courtship behaviour important?
    So that organisms find other members of the same species to produce fertile offspring.
  6. What are the different types of courtship behaviour?
    • Sexual selection
    • Recognition of own species
    • Pair bond
    • Synchronise mating
  7. Define hierarchy.
    The taxonomical classification of organisms in successive levels of complexity from Kingdom to Species.
  8. What is biodiversity?
    The variety of living organisms.
  9. How can biodiversity be measured?
    • Ecosystem diversity - range of different habitats
    • Species diversity - number of different species + individuals in a community
    • Genetic diversity - genetic variation, number of alleles in gene pool
  10. What are the factors affecting biodiversity?
    • Co-extinction - 
    • Over-exploitation - 
    • Invasion of alien species -
    • Habitat loss/fragmentation -
Author
PassYourAlevels
ID
345997
Card Set
Evolution
Description
Genetics, populations, evolution and ecosystems for Biology AQA A-level.
Updated