biodiversity + classification Flashcards
def: Biodiversity
the variety of plant and animal life in the world or a particular environment
types of biodiversity
genetic
species
ecosystems
genetic diversity
the genes in the gene pool of an organism and its species
species diversity
the variety of species in an ecosystem
ecosystem diversity
difference between habitats and communities between ecosystems
measures of biodiversity
spatial: the space being occupied and the distribution
temporal: time. how temporal patterns change over a given period of time
why is biodiversity important
keeps environments resilient to change and healthly
morphological species concept
the form and characteristic of an organism
it they look the same they are the same
biological species concept
exceptions
limits
organisms that can interbreed to produce viable, fertile offspring
hybrids
fossils
phylogenetic species concept
the smallest group of organisms that can trace their origins back to a common ancestor
why do we classify
to identify existing and new organisms to organise and for universal scientific communication
taxons?
domain, kingdom, phylum, class, order, family, genus and species
what are taxons based on
characteristics reproduction methods DNA
features of eukaryotes and prokaryotes
e: membrane and DNA in nucleus
P: no nucleus circulaar DNA
binomial naming
a scientific name consisting of a generic and specific name eg. genus and species
