Evolution Lab Quiz

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LIFE BEGAN

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3.6 Billion Years ago

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PHOTOSYNTHESIS BEGAN

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2.5 Billion Years Ago
ex: photosyntheic bacteria: Cynobacteria

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AEROBIC RESPIRATION BEGAN

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2 Billion Years Ago

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EUKARYOTIC CELLS

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1.8 Billion Years Ago

Cells with DNA in Nucleus

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FIRST AMINALS

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700 MIllion Years Ago

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FIRST LAND PLANTS

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400 Million Years Ago

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MAJOR EXTINCTION

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245 Million Years Ago

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"AGE OF DINOSAURS"

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245 - 65 Millions Years Ago

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MAJOR EXTINCTION INCLUDING DINOSAURS

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65 Million Years Ago

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EARLY PRIMATES

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43 Million Years AGo

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FIRST HOMO

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2 Million Years Ago

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MODERN Homo sapiens

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200,000 Years Ago

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Prokaryotes
Domain
Kingdom

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Domain: Archea, Bacteria
Kingdom: Monera (unicellular)

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Eukaryotes
Domain
Kingdom

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Domain: Eukarya
Kindom:
Protista- Algae (colonial)
Fungi-Yeast (unicellular)
Mold (multicellular)
Plantae- (multicellular)
Animalea-(multicellular)

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Variation

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Mutation of genes which either help a population survive and produce offspring, or succumb to environmental pressures.

* EVOLUTION DEPENDS ON VARIATION

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Natural Selection

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Select the best Variation within a species.

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Evolution
occurs at TWO levels

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Macroevolution: the formation of new species- the myriad number of different species

Microevolution: the small changes within a population.

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Evolution

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*Is the change in the inheritable traits of a population over time.
*POPULATIONS EVOLVE, NOT INDIVIDUALS!

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A Cell has DNA
DNA have genes ON the DNA
Genes produce protiens

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These genes make a product. The product is always protein.
Proteins are made up of amino acids (C.H. O, N, S)
There are 20 Amino Acids in nature.

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Protien used in lab:

HEMOGLOBIN

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Hemoglobin is the molecule in your red blood cells that makes your blood red and carries oxygen to you cells.

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Deep Geologic Time

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The formation of new species takes a very long time - hundred of thousands to millions of years.

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PROKARYOTES>DOMAIN>
ARCHAEA VS BACTERIA

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ARCHAEA:
-Present in unusual extreme environments ie: volcanoes, frozen polar regions, hot sulphur springs, dark depths of the ocean.
-Not harmful to Humans
-most members are yet identified
BACTERIA:
-Lives everywhere
-Harmful to humans
-5% of the world bacteria have been identified