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Bio/Int. 2
Lesson 25- Taxonomy
| Question | Answer |
|---|---|
| Taxonomy | branch of biology that deals with the identification and naming of organisms |
| Domain | new taxonomic category above kingdom, three are proposed: Archaea, Bacteria, and Eukarya |
| Kingdom | largest taxonomic group after domain, consists of closely-related phylums, there are currently five: Monera, Protista, Fungi, Plantae, and Animalia |
| Kingdom Animalia | consists of complex multi-cellular heterotrophs, lack a cell wall, cells are highly specialized, able to move in complex ways |
| Kingdom Plantae | consists of multi-cellular photosynthetic organisms, most live on land, all cells have a cell wall containing cellulose, cells contain plastids that stores food |
| Kingdom Fungi | consists of multi-cellular, eukaryotic heterotrophs, cell walls are made of chitin instead of cellulose, cells lack chlorophyll and cannot carry-out photosynthesis |
| Kingdom Monera | consists of the most numerous and widespread organisms on earth, prokaryotes lacking membrane-bound organelles and nucleus, includes bacteria which were the earliest live forms |
| Autotroph | an organism that can create its own food by capturing energy from sunlight or chemicals and use it to produce its own food, also called a producer |
| Heterotroph | an organism that obtains energy from the foods it consumes, also called a consumer |
| Virus | a particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells |