taxonomy unit 2 Flashcards
advantages
study the diversity of life
recognize name without language barriers
better understanding of evolution
more complete picture of how life evolves
binomial nomenclature
species scientific name composed of the genus and the species in latin
groups
(domain) kingdom, Phylum, class, order, family, genus, species
species
designation occurs naturally because organisms decide who they mate mate and reproduce with under natural conditions.
dichotomous keys
used to identify species
chart or statements
2 pathways
1 less pair of statements than the number of species
monera
bacteria and cyanobacteria- single cells that are prokaryotic. went into two separate groups eubacteria and archaebacteria which have differences in their cell eubacteria have peptidoglycan and archaebacteria don’t have peptidoglycan in their cell walls
protista
amoeba, unicellular EUKARYOTIC
fungi
mushrooms, mould. non motile and cannot photosynthesize heterotrophic. different cell wall and reproduction
plantae
photosynthesize- contain chloroplasts and a cell wall that contain cellulose, autotrophs
animalia
multicellular, depend on material for food and produce gametes, mobile
archetista
viruses- nonliving unicellular and evolve to produce drastic changes in organisms. composed of protein coat surrounding RNA or DNA
phylogeny
evolutionary history of an organism.description of the history of descent of a group of organisms and their common ancestor.
cladogram
phylogenetic tree- shows the history of an organism- nodes on the tree show the time of speciation
clade
group of evolutionary species that consists of all evolutionary descendants of a common ancestor
taxa
named clades and species
derived trait
differs from its form in common ancestors of a lineage- NODE indicates derived features