Schedule  Today – review Photosynthesis, intro the Tree of Life  Tomorrow – REACH performance task. I will allow you to sub it for one quiz  Friday.

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Presentation transcript:

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 Tree is REALLY Complicated… (Chloroplasts)

A Note about DKPCOFGS  A gross oversimplification- there are many more branches  Still used, but somewhat outdated  Lots of sub-phyla, super-families etc.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 Lizards/ Snakes Turtles

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