BIOL316 Chapter 1

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Comparative animal physiology deals with all three of these levels:
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Historically had nice populations in Walker Lake...over last sixty or so years more and more water has been pulled out of the river making the lake freshwater inflow reduced resulting in the lake becoming more and more salty, so the trout population is pretty minute now.
-Temperature determines their upper limit
-O2 determines their lower limit
Oxygen is what percentage of total atmospheric pressure?21% or 0.21Adaptation-A genetically based trait that increases and animal's probability of success in the environment -Result of natural selection -Evolved response to environmental factors