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Chapter 29Plant Diversity I:
The Colonization of Land
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Question ?
What are the characteristics of Plants?
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Additional Characteristics
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Solution - Stomata
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Secondary Products
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Antheridia
Sterile cells
Sperm
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Archegonia
Sterile Cells
Egg
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Plants: Evolutionary Trends
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Evolution of Plants
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Evolutionary Advancement in Plants
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Movement from water to land
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Nonvascular Land Plants
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Divisions or Phyla:
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Characteristics
Moss Leaf
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Gametophyte
Antheridia Archegonia
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Sporophyte
Sporangium Spores
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Seedless Vascular Plants
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Divisions or Phyla:
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Psilotum – a Wiskfern
Sporangia
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Lycopodium - a Club Moss
Strobilus
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Equisetum - Horsetails
Strobilus
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Fern – Life cycle
Sporophpyte Sori on fronds
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Plant Diversity II:The Evolution of
Seed Plants
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Adaptations: Seed Plants
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Gymnosperms – Divisions or Phyla
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Pollen Cone
Male Cones Sporangia
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Ovulate Cone
At time of Pollination
Ovulate Cone
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Ovulate Cone
Megaspore Mature Cones
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Conifer Seeds
Embryo Mature Seed
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Other Examples
Cypress Pacific Yew
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Importances Cycadophyta:
Landscaping Food
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Ginkgo
Tree Fall Color
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Ginkgo - Male
Male cones Sperm