Classification of Organisms 4B Flashcards
What is Phylogeny
the study of evolutionary history of groups of organisms
How can common ancestors be shown
phylogenetic tree
first branch shows a common ancestor for all family members
Closely related species are closer together
Define taxonomy
science of classification
what are three domains
Archea, eukaryota and bacteria
Carl linneas classification
Kingdom
Phylum
Class
Order
Family
Genus
Species
Why are classification systems updated
because of new technologies allowing discoveries about new species, updated genomes, biochemistry and microscope technologies
Carl woesse classification system
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
What is the classification system called
Binomial naming system
First part Genus
Second part species
eg Homo sapien used to avoid the confusion of common names
Define species
organisms that breed together to produce fertile offspring
Define courtship behaviour
species specific behaviour carried out by organisms to attract a mate
What does courtship behaviour prevent
inbreeding
What does courtship behaviour make more successful
reproduction
Courtship behaviour can be used to
classify organisms
Firefly courtship behaviour
They give off pulses of light the pattern is species specific
Cricket courtship behaviour
give off sounds similar to morse code, the code is species specific
