Proterozoic
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Proterozoic
2,500 – 500 mya
Oxygen atmosphere
l Eukaryote cells
l
l
2
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d’Ottawa / University of Ottawa
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Geological time scale
and distances
( 1km – 1Ma)
l
Major Eons (Ma)
– Phanerozoic (550 Ma to
present time)
– Proterozoic (2,500 – 550 Ma)
– Archaean (3,800 – 2,500 Ma)
– Hadean (4,500 – 3,800 Ma)
Université
Université d’Ottawa
d’Ottawa / University of Ottawa
Unless indicated otherwise images are © McGraw-Hill Companies, Inc.
Distances (Km)
(driving)
0 Ottawa
490 Sudbury
578 London
2,700 Regina,
3,600 Banff
4,500 Victoria
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Stromatolites
(Cyanobacteria
(Cyanobacteria
and more)
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Université d’Ottawa
d’Ottawa / University of Ottawa
Unless indicated otherwise images are © McGraw-Hill Companies, Inc.
4
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Endosymbiont theory
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d’Ottawa / University of Ottawa
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5
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5 Kingdoms
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6
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2
Classification of protozoans
Algae
Diatoms
l Flagellates
l Ciliates
l Sarcodines (ameobas)
l Sporozoans
l Slime and water molds
l
l
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Université d’Ottawa
d’Ottawa / University of Ottawa
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7
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Life cycles
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Université d’Ottawa
d’Ottawa / University of Ottawa
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8
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Life-cycle
LifeLife-cycle of Chlamydomonas
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d’Ottawa / University of Ottawa
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9
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3
Ulva life cycle
Thallus
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d’Ottawa / University of Ottawa
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10
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Diatoms
l
l
l
Main phytoplankton
Only male gametes
with flagella
Silica based shells
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Université d’Ottawa
d’Ottawa / University of Ottawa
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11
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9+2 organization of cilia and flagella
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Université d’Ottawa
d’Ottawa / University of Ottawa
Unless indicated otherwise images are © McGraw-Hill Companies, Inc.
12
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4
Euglena
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13
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Trypanosomes
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14
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Ciliates - Paramecium
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15
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5
Euplotes
16
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Sarcodines
17
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Amoeboid locomotion
Ectoplasm
Endoplasm
Hyaline cap
Direction of movement
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d’Ottawa / University of Ottawa
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Shelled amoebas
Foraminifera
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Radolarians
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Shelled amoebas
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Reproduction
l
Sexual reproduction
l
Asexual
– Conjugation
– Binary fission
– Multiple fission
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d’Ottawa / University of Ottawa
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21
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7
Plasmodium vivax - malaria
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d’Ottawa / University of Ottawa
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22
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Slime molds
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d’Ottawa / University of Ottawa
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