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AP Biology

AP Biology. Transition to L and Biomes. Hadley Cell Model. Meristematic Tissues. Darwin’s experiment on Phototropism. Phytochrome activation. Signal Transduction Response. Long night plants. Short night plants. Transpiration. Guard Cell operation.

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AP Biology

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  1. AP Biology Transition to Land Biomes

  2. Hadley Cell Model

  3. Meristematic Tissues

  4. Darwin’s experiment on Phototropism

  5. Phytochrome activation

  6. Signal Transduction Response

  7. Long night plants

  8. Short night plants

  9. Transpiration

  10. Guard Cell operation

  11. Amino Acid structure(Remove the amine on the left)

  12. Nitrogenous Waste forms

  13. Canada goose Pacific bottlenose dolphin Countercurrent Heat Exchange Blood flow Vein Artery Vein Artery 33° 35°C 27° 30° 20° 18° 10° 9°

  14. Sweat glands secrete sweat that evaporates, cooling the body. Thermostat in hypothalamus activates cooling mechanisms. Blood vessels in skin dilate: capillaries fill with warm blood; heat radiates from skin surface. Temperature control Increased body temperature (such as when exercising or in hot surroundings) Body temperature decreases; thermostat shuts off cooling mechanisms. Homeostasis: Internal body temperature of approximately 36–38°C Body temperature increases; thermostat shuts off warming mechanisms. Decreased body temperature (such as when in cold surroundings) Blood vessels in skin constrict, diverting blood from skin to deeper tissues and reducing heat loss from skin surface. Thermostat in hypothalamus activates warming mechanisms. Skeletal muscles rapidly contract, causing shivering, which generates heat.

  15. one-celled amphibians echinoderms cilia insects fish mammals • • endotherm vs. ectotherm size water vs. land Gas Exchange in Many Forms…

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