diversity ecosystems yr1

• define population?


  all organisms of a specific species which live in the same space
• define genetic diversity?


  total number of different alleles in a population
• advantage to high genetic diversity?


  Adaptability , allows natural selection
• how does natural selection result in development of new characteristics?


  random mutations produce new alleles which are useful , allowing the organism to live and reproduce passing on the allele to offspring increasing its frequency
• 3 types of adaptation?


  anatomical, physiological, behavioural
• advantages of courtship behaviour?


  recognising other gender , successful breeding , pair bonds
• eight groups an organism can be classified in?


  Kingdom, Phylum, Class, Order, Family, Genus, Species
• what is used to give an organism an universal name?

  Binomial nomenclature
• what is phylogenetic classification?


  Grouping organisms based on their evolutionary relationships.
• how do we find evolutionary relationships?


  analyse genome sequencing
• what is hierarchical classification?


  Organizing items into levels based on their similarities no overlap
• ways to compare genetic diversity between organisms?

  DNA sequencing , RNA sequencing , ammino acid sequencing
• what is intraspecific and interspecific?


  Intraspecific: within the same species. Interspecific: between different species.