species and taxonomy

• courtship behaviour

  pre-mating activities to recognise the member of the same species
• importance of courtship behaviour

  recognises other species (reproduction)

  forms a pair bond

  synchronise mating
• species

  two organisms that can interbreed to produce fertile offspring
• taxonomy

  classifying biological organisms into groups
• how could we see the evolutionary relations or origins

  the phylogenetic tree shows us the common ancestors
• taxonomy groups in order

  domain

  kingdom

  phylum

  class

  order

  family

  genus 

  species
• binomial system

  genus species
• species richness

  measure of the number of different species in a community
• index of diversity

  describes the relationship between the number of species