2 Bacteria 2 There are few environments free of microbes. Microbes can grow: –in environments...
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Transcript of 2 Bacteria 2 There are few environments free of microbes. Microbes can grow: –in environments...
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Bacteria
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• There are few environments free of microbes. Microbes can grow:– in environments below 0oC,– in environments above 100oC,– at pH 1,– at pH 12,– with no oxygen,– on inorganics,– on gaseous nitrogen (and provide fixed N for
all other life)– on cellulose (and hence allow all herbivores
to exist).
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Binary Fission
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Protists
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Definitions
• sporophyte - a 2n structure - diploid• gametophyte - a 1n structure - haploid• gamete - haploid, produced by meiotic
division• zygote - the union of two gametes (2n)• anthredia -
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Moss Lifecycle
Anthredia
Archegonia
Male gametophyte
Female gametophyte
sporophyte
Protonema
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Fern Lifecycle
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GymnospermLifecycle
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Angiosperm Lifecycle
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