Taxonomy!!. ï€ Taxonomy! ï€ Branch of biology used to classify organisms according to their characteristic similarities ï€ Consider phylogeny (evolutionary

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  • Taxonomy!!

  • Taxonomy!Branch of biology used to classify organisms according to their characteristic similaritiesConsider phylogeny (evolutionary history) relationships of organisms' structures (Morphology, reproduction, nutrition) A man made science

    How do humans bring order to the diversity of life existing today??

  • Ancient Greek Philosopher. Devised system of classification based on organism behavior and structure. Aristotle

  • Swedish Naturalist (1707-1778) Carolus Linnaeus

  • Organisms grouped according to morphology into hierarchal categories. (Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species) Classification of Organisms is from general to specificFinal two categories (genus species) created a scientific method of naming organisms. Linnaeus System

  • Two word system of naming organismsGenus & speciesUse Latin to assign a single identifying name to every discovered organism

    Genus is Capitalized and species is notWritten in italics or underlined Binomial Nomenclature

  • Have you ever eaten dolphin?

    Common Name: Dolphin Common Name: Mahi-Mahi, DolphinScientific name: Scientific name: Tursiops truncatus Coryphaena hippurus Why have a universal language of scientific names?

  • Biological Hierarchy of Classification

  • Primitive single celled prokaryotic organisms, have cell walls with no peptidoglycan, adapted to extreme conditions, may be autotrophic or heterotrophic


  • Single-celled prokaryotic organisms that have cell walls with pedidoglycan, autotrophic or heterotrophic


  • Bacteria is the oldest organism ever!The belong to the kingdom MONERAAll bacteria have NO NUCLEUS, which means that their DNA could be floating all around the cytoplasm.


  • Bacterial DNA is arranged in a CIRCULAR shape (plasmid)Bacteria are just like people, they come in all different shapes and sizes. The three shapes are :RODSPIRALROUND

  • Diverse group of eukaryotes, mostly unicellular, can be animal like heterotrophy, protozoans (zooplankton) or plant-like autotrophs algae (phytoplankton)Protista

  • If you look at a drop of pond water under a microscope, all the "little creatures" you see swimming around are protists.

    Protists are very diverse in how they acquire food and energy.Protozoa : heterotrophs which feed on other plants and animals.Algae: autotrophic protists, (make their own food)

  • Phylum- RhizopodaPhylum-ForaminiferaPhylum-ChlorophytaPhylum- Rhodophyta

  • Phylum-PhaeophytaPhylum-Bacillariophyta

  • Non-motile, mostly multicellular, eukaryotic heterotrophs, have cell walls containing chitin.


  • Multicellular eukaryotic chloroplast containing autotrophs, have cell walls containing cellulose.


  • Multicellular, eukaryotic heterotrophy lacking cell walls, primarily sexual reproducers, most show some level of anatomical organization with specialized cells. Animalia