Schedule Today – review Photosynthesis, intro the

Tree of Life

Tomorrow – REACH performance task. I will allow you to sub it for one quiz

Friday – finish posters Monday – present posters

The Tree of Life

Originally Everything was a plant or an animal

Discovery of Cells and Bacteria In the mid 1600s using newly invented

microscopes Changed view of life dramatically

Taxonomy Existed Before Evolution Was Understood Simply classified things to make sense

of the world Modern taxonomy credited to Carolus

Linnaeus in the 1700s

Evolution and Taxonomy Evolution obviously explains why

species seem related and can be classified together

Modern goal of taxonomy is to construct the tree of life based on relationships

5 Kingdom System Originally there were 5

kingdoms Monera /Bacteria Protista Fungi Plantae Animalia

2 Empires Prokaryotes and eukaryotes

3 domain system

The T

ree is

REA

LLY

Com

plic

ate

d…

(Chlo

ropla

sts)

A Note about DKPCOFGS A gross

oversimplification- there are many more branches

Still used, but somewhat outdated

Lots of sub-phyla, super-families etc.

Example

Class Reptilia

Class Aves

Liza

rds/

Snak

es

Turtl

es

Posters In your group of 4 make a poster illustrating

your assigned domain or kingdom It should contain:

Drawings or pictures representing species belonging to that group

Examples of species that belong to this group Unifying characteristics of this group Interesting facts about this group

Genus Homo Defining characteristics:

Big brains Bipedal, upright

Example species: Sapiens Neanderthals Habilis Erectus Floresiensis (hobbits)

Fun facts: Homo sapiens have been

the only Homo species for the last 12,000 years

Groups Domain Bacteria Domain Archaea Domain Eukarya Kingdom Animalia Kingdom Fungi Kingdom Plantae Kingdom Protista