9.4
Reproduction in plants
Essential Idea: Reproduction in flowering plants is influenced by the biotic and abiotic environment.
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Nature of Science: Use models as representations of the real world: mechanisms involved in water transport in the xylem can be investigated using apparatus and materials that show similarities in structure to plant tissues.
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UNDERSTANDINGS:
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Flowering involves a change in gene expression in the shoot apex.
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The switch to flowering is a response to the length of light and dark periods in many plants.
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Success in plant reproduction depends on pollination, fertilization, and seed dispersal.
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Most flowering plants use mutualistic relationships with pollinators in sexual reproduction.
APPLICATIONS & SKILLS
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Application: Methods used to induce short-day plants to flower out of season.
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Skill: Drawing internal structure of seeds.
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Skill: Drawing half-views of animal-pollinated flowers.
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Skill: Design of experiments to test hypotheses about factors affecting germination.
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RESOURCES
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