Bio-ag

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24 terms · chapter 18.

taxonomy

practice of classifying plants and animals according to their presumed natural relationships

binomial nomenclature

Classification system in which each species is assigned a two-part scientific name

taxon

animal or plant group having natural relations

class

(biology) a taxonomic group containing one or more orders

family

primary social group

phylum

(biology) the major taxonomic group of animals and plants

genus

a general kind of something

order

putting in order

kingdom

a basic group of natural objects

phylogeny

(biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms

evolutionary classification

Method of grouping organisms together according to their evolutionary history

derived character

Characteristic that appears in recent parts of a lineage, but not in its older members

cladogram

a tree diagram used to illustrate phylogenetic relationships

molecular clock

Model that uses DNA comparisons to estimate the length of time that two species have been evolving independently

domain

a knowledge domain that you are interested in or are communicating about

Bacteria

(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission

Eubacteria

a large group of bacteria having rigid cell walls

Archaea

Domain of unicellular prokaryotes that have cell walls that do not contain peptidoglycan

Archaebacteria

considered ancient life forms that evolved separately from bacteria and blue-green algae

Eukarya

Domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals

Protista

eukaryotic one-celled living organisms distinct from multicellular plants and animals: protozoa, slime molds, and eukaryotic algae

Fungi

(pun) the one who buys the drinks

Plantae

the taxonomic kingdom comprising all living or extinct plants

Animalia

taxonomic kingdom comprising all living or extinct animals

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