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Plant Responses

Plant Responses. Plant Response. Tropism Positive (toward stimulus) vs. Negative (away from stimulus) Phototropism Geotropism ( gravitropism ) Nastic Movement Nastic. Photoperiodism. Short day Long day Day neutral. Alternation of Generations. Alternation of Generations.

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Plant Responses

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  1. Plant Responses

  2. Plant Response • Tropism • Positive (toward stimulus) vs. Negative (away from stimulus) • Phototropism • Geotropism (gravitropism) • Nastic Movement • Nastic

  3. Photoperiodism • Short day • Long day • Day neutral

  4. Alternation of Generations

  5. Alternation of Generations

  6. Alternation of Generations

  7. Fern Life Cycle • Spore germinates to form gametophyte • Gametes produced by gametophyte • Antheridium • Archegonium • Sperms swims to egg (fertilization) • Sporophyte grows from zygote • Sporophyte produces spores

  8. Gymnosperm

  9. Life Cycle of Gymnosperm

  10. Angiosperm

  11. Life Cycle of Angiosperm

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