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Understanding Plant Adaptations and Cellular Development in Diverse Biomes

This text explores various adaptations of plants to their environments, including chloroplast and chromoplast functions in Forsythia, cellular development through mitosis, and the characteristics of different biomes such as tropical rainforests, temperate deciduous forests, and deserts. It discusses water transport within cells, the impact of temperature on growth, and the interactions between organisms within these ecosystems. Adaptations like drip tips, waxy leaves, and CAM photosynthesis are highlighted, demonstrating how plants thrive in nutrient-poor soils and extreme climates.

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Understanding Plant Adaptations and Cellular Development in Diverse Biomes

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Presentation Transcript

  1. The Animal Cell

  2. The Chloroplast

  3. Chromoplast in Forsythia

  4. Cell Walls

  5. Water transport thru cells

  6. Cellular Development: Mitosis

  7. Early Cellular Development: The seed

  8. The Generic Seedling

  9. Moist, high temps Consistent year round growth High diversity Some adaptations: Most plants evergreen Drip tips Epiphytes Waxy leaves Tropical Rain Forest

  10. Nutrient poor and seasonally flooded soils Still warm temps, but lower humidity Both deciduous and evergreen Fire adapted Southeastern mixed forest

  11. Too cold/dry in winter to support much photosynthesis Snow melt allows for rapid growth in spring Very similar to species found in Asia Temperate Deciduous Forest

  12. Limited by temperature Acidic soils Mostly evergreen trees Taiga

  13. Temperature extremes, too dry and too much fire to support forest Few trees, mostly grasses and forbs C3 and C4 grasses: dominance determined by temp and water Very little original prairie left Grasslands

  14. Hot, dry Mostly cacti, shrubs, grasses Slow growing vegetation Adaptations: Water stress CAM photosynthesis Protection against herbivory Hot Desert

  15. West Coast biomes

  16. Communities: Groups of interacting organisms in a given place

  17. Positive interactions: Pollinators Seed dispersers Nitrogen fixing bacteria and fungi Animals that prey upon herbivores Negative Interactions Herbivores Fungi Pathogens Which organisms do plants interact with?

  18. Lab: How are plants adapted to their particular environments? • What adaptive trait do you see? • How is this an adaptation to this plant’s environment?

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