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Question

Define a taxon. What is meant by taxonomic hierarchy? Give a flow diagram from the lowest to highest category for a plant and an animal. What happens to the number of individuals and numbers of shared characters as we go up the taxonomical hierarchy?

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Solution

Taxon is a scientific term used for different categories of classification.

Taxonomic hierarchy is position of different taxonomic categories is ascending order, which describes the complete systematic position of any living organism.

Given below is the flow diagram of taxonomic hierarchy

TaxonPlantAnimalKingdomThis~ is~ the~highest~ category~ofKingdom-Plantaee.g.,kingdom-Animalia.classification,~which~includes~allorganism~ that~ share~ a~ set~ ofdistinguishing~ common~ characters.Phylum/DivisionIt~ includes~ different~ classes~ having~aDivision~is~used~inPhylum~is~used~in~animalsfew~common~characters.plantse.g.,Chordata~includesclass~like~Pisces,Amphibia,Reptilia,Avesand~MammaliaClassRepresents organisms of relatedFound only inComprises of relatedorders.flowering plants,i.e.,orders i.e.,classMonocotyledoneaeMammaliaand dicotyledoneae.OrderIt is an assemblage of familiese.g.,dicotyledoneaee.g.,classMammaliaresembling oneanother in fewconsists of orderincludes order chiroptera,characters.These characters are lessrosales polemoniales,marsupialia, rodentia,similar as compared to characters ofsapindales, ranales etc.cetacea,carnivora.Genus It is the first higher category abovee.g.,e.g.,hlidae comprises ofthe species level. It is a group ofFamilySolanaceaegenus panthera (lion,species, which are related and havecomprises of genustiger) and Felis(cats)fever characters in common asSolanum.compared to species.Species It is a group of individuals withe.g., Solanum nigrume.g., The genus pantherasimilar morphological characters,(brinjal)andSolanumincludes species leo(lion)which are able to interbreed andtuberosum. HereandPanthera tigiris (tiger).produce individuals of their ownare two species ofkind.Solanum genus.

As we move up in the taxonomic hierarchy the number of shared characters become less.


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