Classification and Species Interactions

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Presentation transcript:

Classification and Species Interactions FCAT Day 6 Classification and Species Interactions

Carolus Linnaeus The “Father of Modern Taxonomy” Established methods for classifying and naming organisms that are still used BINOMIAL NOMENCLATURE Two name names

Hierarchical Classification It starts very broad and gets more specific 7 hierarchies in our system: Kingdom Very broad Phylum (Division) Class Order Family Genus Species Very specific Explain that kingdoms are the broadest classification and that species is the most specific. Scientists have divided all organisms into smaller and smaller groups until they have only 1 type of organism (a species). A phylum is called a division in the plant kingdom.

Taxonomy Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Urisidae Genus: Ursus Species: Americanus

The 6 Kingdoms Kingdoms are the largest division-all organisms are in one of the 6 kingdoms Animals Plants Fungi Protists Eubacteria Archaebacteria Every organism that has been discovered on earth is put into one of the six kingdoms. What kingdom an organism is classified in depends on the number and type of cells (multicellular or unicellular, eukaryotic vs. prokaryotic), whether or not they move, and how they get their food (photosynthesis or eating other organims).

Food Webs and Trophic Labels A food chain represents a succession of organisms that eat another organism and are, in turn, eaten themselves.

Producers- autotrophs- plants Consumers- heterotrophs- animals Omnivores: meat and plants Herbivores: plants Carnivores: meat Decomposers: fungi & bacteria

Plants All plants are multicellular All plants are eukaryotic All plants are autotrophic

Animals All animals are eukaryotic All animals are multicellular All animals are heterotrophic

Species name Based on a system of binomial nomenclature The Latin version of the genus and species of an organism Members of a species must be able to successfully reproduce and have fertile offspring

Dichotomous keys What is a dichotomous key? A step-by-step guide to identify an organism Each step gives a choice of two descriptions. The descriptions have to be opposites Ex. Leaves round vs. leaves not round