Plants - Plants Sections 24.1-24.3 25.1 and 25.5 Plant...

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1 Plants Sections 24.1-24.3, 25.1, and 25.5 Plant Characteristics 1. Photosynthetic 2. Fixed in one place 3. Multicellular 4. Mostly land-dwelling 5. Cell walls made of cellulose 6. Alternation of generations Alternation of Generations Plants alternate between a sporophyte generation and a gametophyte generation Sporophytes Produce spores Spores are haploid and develop into multicellular form (the gametophyte) Gametophytes Produce gametes (haploid) Two gametes fuse to form diploid cell which develops into multicellular form (the sporophyte)
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2 Four Plant Categories Bryophytes Seedless Vascular Plants Gymnosperms Angiosperms Examples of Bryophytes Vascular System Tubes to transport fluids up and down plant Bryophytes: no All other land plants: yes Bryophytes are limited in size, and found only in moist environments Seedless Vascular Plants Pollen Brings sperm-producing cells to female organs Wind transport (gymnosperms) Animal transport (angiosperms)
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3 Seeds Packages of food and protection for
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This note was uploaded on 04/15/2011 for the course BIOL 101l taught by Professor Huddleston,m during the Fall '08 term at University of Hawaii, Manoa.

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Plants - Plants Sections 24.1-24.3 25.1 and 25.5 Plant...

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