AlternationofGeneration1(revised)

AlternationofGeneration1(revised) - Four Major Plant Groups...

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Alternation of Generation in Plants Chad Cryer Biology Adjunct Professor Austin Community College
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Alternation of Generation in Plants Goals for lecture: Understand the generalized life cycle of plants Compare how this differs from our life cycle Explore the evolutionary trends associated with the life cycles of the four major plant groups
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Four Major Plant Groups Bryophytes Seedless Vascular Plants Ferns, Horsetails, Lycophytes Gymnosperms Conifers, Cycads, Ginkgos, Gnetophytes Angiosperms Flowering Plants
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Four Major Plant Groups Bryophytes Mosses, Liverworts & Hornworts
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Unformatted text preview: Four Major Plant Groups • Seedless Vascular Plants – Ferns, Horsetails, Lycophytes Four Major Plant Groups • Gymnosperms – Conifers, Cycads, Ginkgos, Gnetophytes Four Major Plant Groups • Angiosperms – Flowering Plants Evolutionary Trend green algae bryophytes ferns gymnosperms angiosperms zygote only, no sporophyte Bryophytes Mosses • Gametophyte dominates life cycle; has leaflike, stemlike, and rootlike parts • Sporophyte dependent on gametophyte for nutrition • Usually live in wet habitats • Flagellated sperm require water to reach eggs...
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This note was uploaded on 10/01/2011 for the course BIOL 1407 taught by Professor Lisagloyna during the Spring '09 term at Austin Community College.

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AlternationofGeneration1(revised) - Four Major Plant Groups...

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