LectIntroduction 2010

LectIntroduction 2010 - Physiology & Molecular...

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Unformatted text preview: Physiology & Molecular Biology of Animals PCB 4723C UNIVERSITY OF FLORIDA Dept of Biology Prof. Harvey B. Lillywhite Fall 2010 Course Website: http://www.biology.ufl.edu/courses/pcb4723/2010fall/Lillywhite heart beats 1,260 times per minute wings flap at 15 to 80 times per sec migrates 2000 miles Introduction to Physiology Physiology = Function ; How Animals Work Dynamic : physical - chemical events in time and space Comparative : August Krogh Principle - For every problem or question in physiology, there is one particular animal or species which can best be utilized to investigate the question. 9 model organism Ecological perspective : real animals in real environments Evolutionary perspective : Proximate vs. Ultimate causes 9 E.g., Warm-bodied tuna. Why? Levels of investigation (emphasis on organism) molecules cells organs & tissues organism populations & communities ecosystems Please begin reading chapter 1 in your text Nature of Physiological Traits Depends on history and evolution 1. Phylogeny inherited from ancestor ( plesiomorphic ) 2. Convergent 2....
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LectIntroduction 2010 - Physiology & Molecular...

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