Classification ZOOLOGY.

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Presentation transcript:

Classification ZOOLOGY

The science of classifying organisms is called taxonomy The “father of modern taxonomy” was Carolus Linnaeus 1707-1778 The science of classifying organisms is called taxonomy The “father of modern taxonomy” was Carolus Linnaeus (Carl von Linné) Organisms are grouped into “taxa” based on their similarities to each other

The Old System 5 Kingdom Classification System: Monera: all prokaryotes Protista: single-celled eukaryotes (protists) Fungi: multi-cellular heterotrophic sessile eukaryotes Plantae: multi-cellular autotrophic sessile eukaryotes Animalia: multi-cellular heterotrophic motile eukaryotes

6 Kingdom Proposal Archebacteria EUbacteria 6 Kingdom Classification System Kingdom Eubacteria: true bacteria (formerly in kingdom monera) Kingdom Archebacteria: extremophiles (formerly in kingdom monera) Kingdom Protista (same) Kingdom Fungi Kingdom Plantae Kingdom Animalia

Organisms are grouped into smaller and smaller groups all the way down to their species A species is the most specific grouping and includes only organisms that can interbreed with each other and produce fertile offspring

Prokaryotic Cell

Eukaryotic Cell

3 Domain System: Archaea: prokaryotes; extremophiles Eubacteria: prokaryotes; true bacteria Eukarya: eukaryotes Protista Fungi Plantae Animalia

King Philip Came Over For Gold Specks Taxa

Ursus americanus American Black Bear Binomial Nomenclature: “a two-name system” First part of name: Genus first letter always capitalized Second part : species first letter always lowercase Binomial Nomenclature: “a two-name system” First part of name: genus first letter always capitalized Second part of name: species first letter always lowercase Entire name is underlined and italicized Names must be submitted for acceptance by original discoverer, and are generally Latin or Latinized Ursus americanus American Black Bear

Canis domesticus Canis lupus Often Latin names contain clues about the type of organism being described. Canis domesticus And closely related organisms are often in the same genus, also giving clues about their names Canis lupus Some names are given after the discoverer, or the discovery location, or even a Latinized descriptive term in English

Autotrophs capture the light energy from sunlight and convert it to chemical energy they use for food. Heterotrophs must get energy by eating autotrophs or other heterotrophs. Decomposers (aka saprobes) are heterotrophs that recycle dead organisms by breaking them down. Fungi are decomposers.

~ Body Plans of Animals~ An animal shows assymetry if there is no central axis (some sponges) An animal has radial symmetry if it can be divided along any plane, through a central axis, into equal halves. (jellyfish, sea anemone) An animal has bilateral symmetry if it can be divided down its length into similar right and left halves forming mirror images of each other. (eel, bird, fox)

Which figure has bilateral symmetry? Which has radial symmetry?

Anatomical Terms for Animals

Domain Archaea Formerly part of the kingdom monera Microbiologists who study bacteria determined that the DNA of these are much different from other, true bacteria Most Archaea live in extreme conditions (very hot, acidic/basic, sulfurous, etc)

Domain Eubacteria Formerly a part of the kingdom monera Name means “true bacteria” These are the kind of bacteria likely to make us sick, live in our gut to help us digest food, or be used in the making of cheese Bacilli Streptococcus Staphylococcus Dicoccus Spirilla

Domain Eukarya Contains all of the eukaryotes (organisms with a nucleus in their cells) Protista Fungi Plantae Animalia

Kingdom Protista Animal-Like (Protozoans) Fungus-Like Plant-Like Paramecium Giardia Amoeba Fungus-Like Includes All Protists: Eukaryotic Unicellular Animal-Like Protists (protozoans) Pseudopods, Ciliates, Flagellates Examples: Amoeba, Paramecia, Giardia Plant-Like Protists (autotrophic) Euglenoids, Dinoflagellates, Diatoms, Green/Red/Brown Algae Fungus-Like Protists Examples: Water molds, slime molds Plant-Like Water Mold Slime Mold Diatom Euglena Green Algae Brown Algae Dinoflagellates

Kingdom Fungi All eukaryotic, multicellular, heterotrophic, sessile organisms. Includes: molds, mushrooms, rusts, and lichens. All eukaryotic, multicellular, heterotrophic, sessile organisms Includes: molds, mushrooms, rusts, lichens Mycorrhizal associations allow plants to absorb more water and nutrients from the soil

Coniferophytes (Pine Trees) Kingdom Plantae Primitive Plants Bryophyte (Moss) Pteridophyte(Fern) Complex Plants Pteridophyte(Fern) All eukaryotic, multicellular, autotrophic, sessile organisms Produce their own food from sunlight and carbon dioxide Common Phyla: Bryophyta (mosses) Pteridophyta (ferns) Coniferophyta (conifers, like pine trees) Angiospermophyta (angiosperms, like flowering plants Coniferophytes (Pine Trees) Angiosperm; Dicot Angiosperm; Monocot

Kingdom Animalia

Porifera Ctenophora Cnidaria Nematoda Platyhelminthes All eukaryotic, multicellular, heterotrophic, motile (most) organisms Common Phyla: Porifera (sponges, corral) Cnidaria & Ctenophora (jellyfish and similar animals) Platyhelmenthes (flat worms, tapeworms) Nematoda (small unsegmented worms) Platyhelminthes

Arthropoda Chordata Annelida Molluska Echinodermata Mollusca (inc. clams, oysters, etc..) Annelida (segmented worms) Echinodermata (starfish and anemones) Arthropoda (crustaceans, insects, spiders) Chordata (those with spinal chords) Molluska Echinodermata

Human Classification Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species: Sapien Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species: Sapien