The study of classifying organisms What is it?!!

Taxonomy/Classification

The study of classifying organisms

Taxonomy

What is it?!!

Which is more dangerous?

The cottonmouth snake OR The water moccasin

Why study taxonomy?

They are one and the same.Taxonomy doesn’t have this problem because

it is simply known as Agkistrodon piscivorus

Swedish botanist who developed the two word naming system known as binomial nomenclature.

He developed groups or taxa to distinguish organisms based on their characteristics.

Carolus (Carl) LinneausAKA The Father of Taxonomy

K• Kingdom

P• Phylum

C• Class

O• Order

F• Family

G• Genus

S• Species

CLASSIFICATIOND • Domain

For example:

the gray wolf or timber wolf

Classifying organisms according to binomial nomenclature must follow a few rules:The name must be in LatinThe Genus and the Species are used as the

nameThe Genus is capitalized and species is notIt must be italicizedEg. Homo sapien, Canis familiaris

Binomial Nomenclature

Moneran• Bacteria• Prokaryotic• No nucleus• Have cell wall• Unicellular• Can be

heterotrophic or autotrophic

Protist• Protozoans,

algae• Eukaryotic• Have nucleus• Some have cell

wall• Mainly

unicellular• Can be

heterotrophic or autotrophic

Fungi• Mushroom,

yeast• Eukaryotic• Have nucleus• Have cell wall• Mainly

multicellular• heterotrophic

Plant• Moss, fern,

trees, flowers• Eukaryotic• Have nucleus• Have cell wall• All multicellular• autotrophic

Animal• Sponge,

annelids, amphibians, birds, mammals

• Eukaryotic• Have nucleus• No cell wall• All multicellular• heterotrophic

OLD, FIVE KINGDOM CLASSIFICATION

Today’s Three Domain System

Dichotomous key• Always begin with #1• Follow directions using choices given• Stop when you get to the correct name• (Remember to compare and contrast figures)