1. Classification

2. The 5 Kingdoms Monera – Bacteria Prokaryotic Unicellular
Autotrophic and heterotrophic
Some move, some don’t
Cell wall – present
Mostly asexual

3. The 5 Kingdoms Protista Eukaryotic Mostly unicellular
Both autotrophic and heterotrophic
Some move, some don’t
Cell wall found only in algae
Both sexual and asexual

4. The 5 Kingdoms Fungi Eukaryotic Multicellular (yeast is unicellular)
Heterotrophic
No movement
Cell wall present
Both sexual and asexual

5. The 5 Kingdoms Plantae Eukaryotic Multicellular Autotrophic
No movement
Cell wall present
Both sexual and asexual

6. The 5 Kingdoms Animalia Eukaryotic Multicellular Heterotrophic
They all move at some point in lifetime
No cell wall
Mostly sexual (with a few asexual)

7. The Basics of Classification
What has led to such a diversity of life on Earth in the past 3.5 billion years?
Evolution and Natural Selection
What is a species?
A population of organisms that share similar characteristics and can breed and produce fertile offspring
1.5 million species have been classified
However, million are still to be discovered

8. Why Classify?
To study the diversity of life, biologists use a classification system to name organisms and group them in a logical manner.
Taxonomy: scientists classify organisms and assign each organism a universally accepted name

9. Assigning Scientific Names
Binomial nomenclature: 2 word naming system developed by Carolus Linnaeus
Rules:
Must either be italicized (when typed) or underlined (when handwritten)
1st letter of the 1st word is always capitalized
2nd word is always lowercase
homo sapien = Homo sapien or Homo sapien
1st word is the genus, 2nd word is the species
Organisms that are closely related will likely be in the same genus, but not in the same species.
Grizzly Bear – Ursus arctos
Polar Bear – Ursus maritimus

10. Linnaeus’ Taxonomy 7 levels of classification
Each level is called a taxon
Kingdom
Phylum
Class
Order
Family
Genus
Species

11. Dichotomous Keys Key used for classification of a specimen
You are given a picture or specimen that needs to be classified
Use a dichotomous key which is a series of steps that contain different characteristics
Follow the steps until a species name is reached!