Chapter 10: Biodiversity Flashcards
what is classification
the organisation of living organisms into groups
definition of species
members of the same species are capable of breeding to produce living fertile offspring
courtship behaviour enables individuals to
- recognising member of their own species
- identify mate capable of breeding
- form a pair bond
- synchronise mating
- become able to breed
what is artificial classification
divides organisms according to differences that are useful at the time
what is phylogenetic classifiaction
based on the evolutionary relationship between organisms and their ancestors
what are homologous characteristics
characteristics that have similar evolutionary origins regardless of their function
what is a taxon
the groups withing a phylogenetic biological classifiaction
what is taxonomy
the study of taxon and their position on a hierarchical order
what is a domain
- higest taxanomic rank
- bacteria, Archaea and Eukarya
clasifiaction order
- kingdom
- phylum
- class
- order
- family
- genus
- species
define biodiversity
variety in the living world.
define species diversity
the number of different species and the number of individuals of each species within any one community
define genetic diversity
the variety of genes possessed by the individuals that make up a population of a species
define ecosystem diversity
the range of different habitats
what is species richness
- a measure of species diversity
- the number of different species in a particular area at any given time
types of selections
- directional
- stabilizing
- disruptive