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Unit 2 Vocabulary

Classification

QuestionAnswer
Unicellular as a single-celled organism
Multicellular Having or consisting of many cells or more than one cell
prokaryotic a single-celled organism that does not have a nucleus or membrane-bound organelles
eukaryotic an organism made up of cells that has a nucleus
Autotroph an organism that makes its own food
Heterotroph an organism that gets food by eating other organisms
cell wall a rigid structure that surrounds the cell membrane and provides support to the cells
cell membrane a layer that covers the cell's surface and acts as a barrier between the inside of a cell and the cell's environment
sexual reproduction reproduction in which the sex cells from two parents unite to produce offspring that shares traits form both parents
asexual reproduction type of reproduction by which offspring arise from a single parent
taxonomy the science of describing, naming, and classifying organisms
classification the division of organisms into groups, or classes, based on specific characteristics
dichotomous key an aid that is used to identify organisms and that consists of the answers to a series of questions
binomial nomenclature system combines two names into one to give all species unique scientific names
Protista an organism that belongs to the kingdom protist
Fungi a kingdom made up of nongreen, eukaryotic organisms that have no means of movement, reproduce by using spores, and gt food by breaking down substances in their surroundings and absorbing the nutrients
Plantae a kingdom made up of complex, multi cellular organism that are usually green, have cell walls, cannot move around, and use the sun's energy to make sugar
Animalia a kingdom made up of complex, multi-cellular organisms that lack cell walls, can usually move around, and quickly respond to their environment
Archaebacteria in modern taxonomic system. a domain made up of prokaryotes that differ from other prokaryotes in makeup of their cell walls and in their genetics
Eubacteria a large group of bacteria having rigid cell walls; motile types have flagella
Kingdom is the third highest taxonomic rank, just below domain. Kingdoms are divided into smaller groups called phyla
Genus A taxonomic category ranking used in biological classification that is below a family and above a species level, and includes group(s) of species that are structurally similar or phylogenetically related
Class a taxonomic rank. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order
Phylum A taxonomic rank at the level below Kingdom and above Class in biological classification, especially of animals. (2) A group of Classes with similar distinctive characteristics
Species A group of closely related organisms that are very similar to each other and are usually capable of interbreeding and producing fertile offspring
family A taxonomic rank in the classification of organisms between genus and order
order a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes.
Created by: madisonnegley
 

 



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