Classification Flashcards
Define biodiversity
the variety of life on Earth and the essential interdependence of all living things
Define species
A group of morphologically similar creatures which can interbreed to produce fertile offspring and are ‘reproductively isolated’ OR creatures who are related through phylogeny
Define speciation
the formation of new and distinct species in the course of evolution, usually through isolation
Define ALLOPATRIC speciation
where the two populations are physically isolated
Define SYMPATRIC speciation
two populations are reproductively isolated in the same environment
Define PERIPATRIC speciation
When small groups of individuals break off from the larger group and form a new species
Define PARAPATRIC speciation
a species is spread out over a large geographic area
what are the 7 main phyla of animalia?
Porifera Cnidaria Platyhelminthes Annelida Mollusca Arthropoda Chordata
Define convergent evolution
the independent evolution of similar features in species of different periods or epochs in time
What are the 4 main phyla of plantae?
Bryophyta
Filicinophyta
Coniferophyta
Angiospermophyta