biological group

Definitions of biological group
  1. noun
    a group of plants or animals
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    a group of organisms sharing a specific genetic constitution
    a group of biological taxa or species that share features inherited from a common ancestor
    taxon, taxonomic category, taxonomic group
    animal or plant group having natural relations
    animal group
    a group of animals
    a group of organisms of the same type living or growing together
    (biology) a group of organisms forming a subdivision of a larger category
    group of genetically related organisms constituting a single step in the line of descent
    descendants, posterity
    all of the offspring of a given progenitor
    division Archaebacteria
    in some classifications considered a kingdom
    division Eubacteria
    one-celled monerans having simple cells with rigid walls and (in motile types) flagella
    Cyanophyta, division Cyanophyta
    prokaryotic organisms sometimes considered a class or phylum or subkingdom; coextensive with the Cyanophyceae: cyanobacteria (blue-green algae)
    Schizophyta, division Schizophyta
    former term for the Cyanophyta
    Heterokontophyta, division Heterokontophyta
    algae having chlorophyll a and usually c, and flagella of unequal lengths; terminology supersedes Chrysophyta in some classifications
    Chrysophyta, division Chrysophyta
    mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta
    Phaeophyta, division Phaeophyta
    coextensive with class Phaeophyceae; in some classifications subsumed in the division Heterokontophyta
    Euglenophyta, division Euglenophyta
    free-swimming flagellate algae
    Chlorophyta, division Chlorophyta
    large division of chiefly freshwater eukaryotic algae that possess chlorophyll a and b, store food as starch, and cellulose cell walls; classes Chlorophyceae, Ulvophyceae, and Charophyceae; obviously ancestral to land plants
    Rhodophyta, division Rhodophyta
    lower plants; mostly marine and littoral eukaryotic algae
    Cynodontia, division Cynodontia
    a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth
    Dicynodontia, division Dicynodontia
    a division of Therapsida
    Adapid, Adapid group
    extinct small mostly diurnal lower primates that fed on leaves and fruit; abundant in North America and Europe 30 to 50 million years ago; their descendents probably include the lemurs; some authorities consider them ancestral to anthropoids but others consider them only cousins
    Omomyid, Omomyid group
    extinct tiny nocturnal lower primates that fed on fruit and insects; abundant in North America and Europe 30 to 50 million years ago; probably gave rise to the tarsiers; some authorities consider them ancestral to anthropoids but others consider them only cousins
    a group of vertebrates comprising both cartilaginous and bony fishes and sometimes including the jawless vertebrates; not used technically
    the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or Animalia
    (biology) a taxonomic group comprising a major division of a kingdom
    organisms sharing a specified genotype or the genotype (or peculiarities) so shared
    two or more draft animals that work together to pull something
    the young of an animal cared for at one time
    a group of birds
    flock, fold
    a group of sheep or goats
    a group of cattle or sheep or other domestic mammals all of the same kind that are herded by humans
    a group of wild mammals of one species that remain together: antelope or elephants or seals or whales or zebra
    a group of hunting animals
    a group of aquatic mammals
    a group of lions
    a group of cats
    school, shoal
    a large group of fish
    in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony
    (microbiology) a group of organisms grown from a single parent cell
    a colony of rabbits
    (biology) a taxonomic category consisting of members of a species that differ from others of the same species in minor but heritable characteristics
    breed, stock, strain
    a special variety of domesticated animals within a species
    (biology) the major taxonomic group of animals and plants; contains classes
    (biology) a taxonomic group ranking between a phylum and a class
    (biology) a taxonomic group ranking between a phylum and below a class or subclass
    (biology) a taxonomic group containing one or more orders
    (biology) a taxonomic category below a class and above an order
    (biology) a taxonomic class below a phylum and above a class
    (biology) taxonomic group containing one or more families
    (biology) taxonomic group that is a subdivision of an order
    (biology) a taxonomic group ranking above an order and below a class or subclass
    (biology) a taxonomic group containing one or more genera
    (biology) a taxonomic group ranking below an order but above a family
    (biology) a taxonomic category below a family
    (biology) a taxonomic category between a genus and a subfamily
    (biology) taxonomic group containing one or more species
    (biology) taxonomic group between a genus and a species
    (biology) a taxonomic group with a single member (a single species or genus)
    (biology) taxonomic group whose members can interbreed
    race, subspecies
    (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species
    form, strain, var., variant
    (biology) a group of organisms within a species that differ in trivial ways from similar groups
    (biology) the taxonomic group whose characteristics are used to define the next higher taxon
    a group of animals (a herd or flock) moving together
    form division
    an artificial taxonomic category for organisms of which the true relationships are obscure
    all future generations
    baby boom, baby-boom generation
    the larger than expected generation in United States born shortly after World War II
    gen X, generation X
    the generation following the baby boom (especially Americans and Canadians born in the 1960s and 1970s)
    the offspring at one birth of a multiparous mammal
    Pteridospermae, Pteridospermaphyta, group Pteridospermae, group Pteridospermaphyta
    used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
    Centrospermae, group Centrospermae
    used in former classification systems; approximately synonymous with order Caryophyllales
    Amentiferae, group Amentiferae
    used in some classification systems for plants that bear catkins
    Phycomycetes, Phycomycetes group
    a large and probably unnatural group of fungi and funguslike organisms comprising the Mastigomycota (including the Oomycetes) and Zygomycota subdivisions of the division Eumycota; a category not used in all systems
    type of:
    group, grouping
    any number of entities (members) considered as a unit
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