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Chapter 3 Classification. classification. Taxonomy - the study of ________. Why classify things?. Organize. Categorize. Order. No. Yes. :. Invertebrate. Vertebrate. mammal. bird. reptile. amphibian. fish. History of Classification. Small (grasses). Aristotle. Plants.
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Chapter 3 Classification classification Taxonomy - the study of ________
Why classify things? Organize Categorize Order
No Yes
: Invertebrate Vertebrate mammal bird reptile amphibian fish
History of Classification Small (grasses) Aristotle Plants Medium (shrubs) Large (trees) Animals 350 B.C. Air Land Sea
Linneaus 1750 • Grouped living things into “kingdoms” • Grouped things by their physical traits • Gave all living things a two-part name…binomial nomenclature. • “two-term name” Plant kingdom Animal kingdom
Pennsylvania USA Holland 2002 Rock Way
Each KINGDOM is further classified into more specific groups, much like addresses are organized into smaller categories.
KINGDOM PHYLUM CLASS ORDER FAMILY GENUS SPECIES
Human Classification Kingdom Phylum Class Order Family Genus Species Animal Multi-cellular consumers Chordate backbone Mammal Milk-producing hairy Opposable digits, Bipedal Stereoscopic vision Primate Hominid Bigger brain, tool making, Homo “wise man” sapien
Similarities in structure and DNA Humans and chimpanzees DNA are 98% similar All are mammals
Scientific name Is an animal’s Genus (Evereadii) and its species (eatibus)
Binomial Nomenclature A two-part naming system Homo sapien Common name: Human Common name: Dog Canis familiaris Pantera tigris Common name: Tiger Elephas maximus Common name: Elephant
The 5 kingdom system ANIMAL PLANT FUNGUS BACTERIA PROTIST
Animal Kingdom multi-cellular cells have a nucleus * Eukaryotic consumers mobility
Plant Kingdom producers multicellular cells have a nucleus * Eukaryotic cell wall • made of cellulose
Fungus Kingdom • Except for YEAST which is unicellular multicellular cells have a nucleus * Eukaryotic Feeds by absorbing its surroundings • Decomposer cell wall • made of chitin
Monera Kingdom (Bacteria) unicellular No nucleus * Prokaryotic producer and consumer cell wall • made of peptidoglycan
Protist Kingdom • some algae are multicellular most are unicellular Producer (Plant-like) or Consumer (Animal-like) cells have a nucleus * Eukaryotic mobility
Dichotomous key A tool used to determine the identity of an organism • a. Wings covered by a hard covering (exoskeleton)…….go to 2 • b. Wings not covered by exoskeleton…….go to 3 • a. Body is round shape…… • b. Body is elongated…… Lady bug Grasshopper Housefly • a. Wings point toward the back……… • b. Wings point toward the sides….. Go to 4 • a. Wings are large and broad……. • b. Wings are long and thin…... Butterfly Dragonfly
Questions What traits were used by Aristotle to classify animals? Why is this considered a poor method by today’s standards? Name the major classification groups, from largest to smallest? What is binomial nomenclature? Why is it used (i.e. why use Latin names?) What are the five kingdoms? Are humans more closely related to a mouse or a chicken? Explain. List two ways how plants and animals are different and similar. What characteristic is exclusive to bacteria? If you discovered an organism with a cell wall, which kingdom would you know it does NOT belong to? If you discovered animal that closely resembled a human, what Class and Order would it likely belong? Which is the largest group? Order, Genus, or Family.