which system of classification should be used? 5-kingdom system
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Which system of classification should be used? 5-Kingdom system - All Prokaryotes grouped in Kingdom Monera - Eukaryotes grouped in separate Kingdoms 6-15 Kingdom system Prokaryotes divided among 2-3 separate Kingdoms Protists divided among many Kingdoms. - PowerPoint PPT PresentationTRANSCRIPT
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Which system of classification should be used?• 5-Kingdom system
- All Prokaryotes grouped in Kingdom Monera- Eukaryotes grouped in separate Kingdoms
• 6-15 Kingdom system- Prokaryotes divided among 2-3 separate Kingdoms- Protists divided among many Kingdoms
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Figure 27.2 The three domains of life
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Prokaryotes
• earliest known organisms
- 3.5 BYA
- They’re (almost)Everywhere!
+ incomparably bountiful and omnipresent
+ hot, cold, salty, acidic, alkaline
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Figure 27.3 The most common shapes of prokaryotes
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Figure 27.4x2 Prokaryotes and eukaryotic cell
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Figure 27.5 Gram-positive and gram-negative bacteria
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Figure 27.5x Gram-positive and gram-negative bacteria
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Figure 27.6 Pili
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Figure 27.x1 Prokaryotic flagella
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Figure 27.x2 Prokaryotic flagella (A. serpens)
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Figure 27.x3 Prokaryotic flagella (Bacillus)
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Figure 27.9 Prokaryote colonies in culture
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Figure 27.10 An anthrax endospore
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Figure 27.10x Endospores
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Figure 27.x1 Prokaryotic conjugation
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Table 27.1 Major Nutritional Modes
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Figure 27.11 One of the most independent organisms on earth: Cyanobacteria (Anabaena)
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Figure 27.11x1 Cyanobacteria: Gloeothece (top left), Nostoc (top right), Calothrix (bottom left), Fischerella (bottom right)
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Figure 27.11x2 A bloom of cyanobacteria