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Taxonomy. What is taxonomy ?. Taxonomy is the branch of biology concerned with the grouping and naming of organisms Biologists who study this are called taxonomists. How did it start?. People wanted to organize their world so they began grouping , or classifying everything they saw.

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Taxonomy


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Presentation Transcript
what is taxonomy
What is taxonomy?
  • Taxonomy is the branch of biology concerned with the grouping and naming of organisms
  • Biologists who study this are called taxonomists
how did it start
How did it start?
  • People wanted to organize their world so they began grouping, or classifying everything they saw.
slide4
Things that swim
  • Things that fly
  • Things that crawl
  • Things that walk on four legs
  • Things that chew their food
  • Things that swallow food whole
  • Things that are toxic
why classify
Why classify?
  • To help us study the earth
  • To help us organize all the species we discover . . .
slide6
To give every species a name based on a standard method so scientists from different countries can talk about the same animal without confusion
who is carolus linnaeus
Who is Carolus Linnaeus?
  • Carolus Linnaeus was a Swedish botanist
  • Developed a 7-level (taxa) classification system based on similarities between organisms
the seven level system
Kingdom

Phylum

Class

Order

Family

Genus

Species

King

Phillip

Came

Over

For

Grape

Soda

The Seven Level System
how does it work
How does it work?
  • There are 6 broad kingdoms
  • Every living thing that we know of fits into one of the six kingdoms
  • Each level gets more specific as fewer organisms fit into any one group
an organism is known by two names
An organism is known by two names…
  • This system uses a binomial nomenclature
  • A binomial nomenclature is a classification system using two names to identify an organism
  • Bi means two
  • Nomen means name
the two names
The two names…
  • First you write the organism’s genus, which consists of a group of closely related species, and the second name is the species which can reproduce and create fertile offspring.
  • Humans=
  • Genus: Hominidae, species: sapien
  • Thus, we are Homosapiens
binomial nomenclature
Binomial Nomenclature
  • The genus name is always Capitalized. The species is not. When scientific names are handwritten, they are underlined:
  • Ex. Dog= Canisfamiliarisor
  • C. familiaris is also acceptable Canis lupus is the scientific name for a gray wolf.
  • Canis is the genus name
  • lupus is the species name
species
Species...

A species consists of organisms that can mate and produce fertile offspring.

Ex. Humans can breed with other humans, and their offspring can also have offspring.

slide14
Ex. Horses and donkeys can mate. They produce a mule, but the mule is infertile.
  • Are horses and a donkeys the same species?

Horse

Donkey

Mule

quick review
Quick Review
  • What are the seven taxa or levels?
  • Who designed the system?
  • What taxa are organisms named with?
slide16

How many classification levels does a bob cat and a lion share?

  • What does this say about their evolution?