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Lec32 04_11_08 Energy - Lecture 32 Energy See Chapter 22 in...

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Lecture 32. Energy April 11, 2008 See Chapter 22 in Cheung, Fundamental Concepts in Biology Outline Pollination: cooperative evolution Diets, calories, and weight gain Obesity and health BMI Energy flow in biological systems Photosynthesis and plant growth
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Announcements Clicker scores posted Will drop lowest 10 scores (top 20) Exam 3 on Friday, 4/18 Review on Wednesday, 4/16 Study guide and exam 2 w/answers now on WebCT Quiz questions and test examples of test questions up this weekend Final exam on Wednesday, 4/23: 10 – 12:50 Review on Monday, 4/21 ***Optional *** (I will drop the lowest score of the four exams) Class evaluation on Monday, 4/21 Extra credit point for essay
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Pollination By wind (about 20%) Grasses Conifers Some deciduous trees By animal Insects (bees, wasps, beetles, ants, moths, flies, etc) Birds and bats Generalists Specialists Coevolution of insect and plant See: http://biology.clc.uc.edu/courses/bio303/coevolution.htm
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Bumblebee pollination
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Hover Flies Extreme specialization Flower provides visual cues Insect and flower have coevolved
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Bumblebee Orchids Pollination services by deceit
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Lec32 04_11_08 Energy - Lecture 32 Energy See Chapter 22 in...

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