Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms....
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![Page 1: Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms. Bellringer: Explain how a dichotomous key works, and its.](https://reader036.fdocuments.us/reader036/viewer/2022070413/5697bfee1a28abf838cb9b17/html5/thumbnails/1.jpg)
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Thursday, March 24, 2011
Objective: Students will be able to classify using the six kingdoms.
Bellringer:
Explain how a dichotomous key works, and its purpose.
(Explain yesterday’s lab in your own words.)
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4 Minutes Remaining…
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Thursday, March 24, 2011
Objective: Students will be able to classify using the six kingdoms.
Bellringer:
Explain how a dichotomous key works, and its purpose.
(Explain yesterday’s lab in your own words.)
![Page 5: Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms. Bellringer: Explain how a dichotomous key works, and its.](https://reader036.fdocuments.us/reader036/viewer/2022070413/5697bfee1a28abf838cb9b17/html5/thumbnails/5.jpg)
3 Minutes Remaining…
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Thursday, March 24, 2011
Objective: Students will be able to classify using the six kingdoms.
Bellringer:
Explain how a dichotomous key works, and its purpose.
(Explain yesterday’s lab in your own words.)
![Page 7: Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms. Bellringer: Explain how a dichotomous key works, and its.](https://reader036.fdocuments.us/reader036/viewer/2022070413/5697bfee1a28abf838cb9b17/html5/thumbnails/7.jpg)
2 Minutes Remaining…
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Thursday, March 24, 2011last chance to view BR - 1 min
Objective: Students will be able to classify using the six kingdoms.
Bellringer:
Explain how a dichotomous key works, and its purpose.
(Explain yesterday’s lab in your own words.)
![Page 9: Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms. Bellringer: Explain how a dichotomous key works, and its.](https://reader036.fdocuments.us/reader036/viewer/2022070413/5697bfee1a28abf838cb9b17/html5/thumbnails/9.jpg)
1 Minute Remaining…
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Turn in Bellringers!!!
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Thursday, March 24, 2011 Bellringer Review
Objective: Students will be able to classify using the six kingdoms.
Bellringer:
Explain how a dichotomous key works, and its purpose.
(Explain yesterday’s lab in your own words.)
![Page 14: Thursday, March 24, 2011 Objective: Students will be able to classify using the six kingdoms. Bellringer: Explain how a dichotomous key works, and its.](https://reader036.fdocuments.us/reader036/viewer/2022070413/5697bfee1a28abf838cb9b17/html5/thumbnails/14.jpg)
Thursday, March 24, 2011
AGENDA:1. BR
2. Notes: Taxonomy
3. Work Time: Classification Practice Problems
HOMEWORK:1. Complete Shark
Dichotomous Key Lab
2. Complete Classification Practice Problems
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Taxonomy
The science of naming organisms.
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Older Classification System:Aristotle Plant or animal? If an animal, does it
– Fly– Swim– Crawl
Simple classifications Used common names
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Newer Classification System:Carolus Linnaeus Described organisms with two word
names, instead of polynomials Developed binomial nomenclature
– First word = genus name– Second word = species name
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Why binomial nomenclature?
Much easier than a 10+ word name under old “polynomial system”
Same name no matter where you go Less confusion Binomial = SCIENTIFIC NAME
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Some Scientific Names to Know
Homo sapiens = modern human Canis lupus = gray wolf Felis domesticus = common cat Pan paniscus = bonobo chimpanzee
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Taxonomic hierarchy
Names organisms and their relationships from very broad to very specific
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All organisms classified in a hierarchy Kingdom (broadest) Phylum Class Order Family Genus Species (most
specific)
King Phillip Came Over For Gooey Spaghetti
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Extra Credit Assignment:
Look up the classification for humans for all seven hierarchies and write them below.1. Kingdom:
2. Phylum:
3. Class:
4. Order:
5. Family:
6. Genus:
7. Species:
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What is a species anyway?
Biological species concept– A group of actually or potentially breeding
natural groups that are reproductively isolated from other groups.
» Ernst Mayr, 1924
BSC’s problems– Hybrids
• Sterile offspring of two different species
– Asexual organisms
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How many are out there?
Scientists currently estimate that– There are 10 million species worldwide– Over 5 million live in the tropics– Most unnamed species are small or
microscopic
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Why is taxonomy useful?
Helps prevent confusion among scientists
Helps to show how organisms are related
Can be used to reconstruct phylogenies – evolutionary histories – of an organism or group
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Cladograms
Graph showing when different groups diverged from a common ancestral line
Points where they diverge are often noted with a feature that was different between ancestral group and a “new” feature in the group that split off.
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Bir
d C
lad
ogra
m
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Vertebrate Cladogram
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The 6 kingdoms
Prokaryotes (Used to be 1 kingdom, Monera)– Archaebacteria– Eubacteria
Eukaryotes– Fungi– Protista– Animal– Plantae
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Overview of the 6 kingdoms
Archaebacteria (old bacteria)– Prokaryotic– Unicellular– Live in extreme environments
Eubacteria (new bacteria)– Prokaryotic– Unicellular– “Common bacteria”
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Overview of the 6 kingdoms
Protista (Ex: euglena, amoeba)– Eukaryotic– Unicellular or colonial– Lots of different life styles
Fungi (Ex: mushrooms, decomposers)– Eukaryotic– Multicellular– Cell walls made of chitin– Heterotrophs (don’t make own food)
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Overview of the 6 kingdoms
Plantae– Eukaryotic & Multicellular– Cell walls made of cellulose– Autotrophic (make own food)
Animalia– Eukaryotic & Multicellular– No cell walls– Heterotrophs (don’t make own
food)
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Thursday, March 24, 2011
AGENDA:1. BR
2. Notes: Taxonomy
3. Work Time: Classification Practice Problems
HOMEWORK:1. Complete Shark
Dichotomous Key Lab
2. Complete Classification Practice Problems