UNT BIOL 4505 - Exam 1 Study Guide (5 pages)

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Exam 1 Study Guide

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Exam 1 Study Guide


A study guide covering lectures 1-9 for the first exam of BIOL 4505.

Study Guide
University of North Texas
Biol 4505 - Comp Animal Physiology
Comp Animal Physiology Documents

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BIOL 4505 1st Edition Exam 1 Study Guide Lectures 1 9 Lecture 1 August 25 Physiology is the study of the function of an organism Fitness is the measure of viable offspring Reasons for studying physiology include 1 the basis of human health and disease 2 for ecosystems wild populations 3 innovating technology 4 models 5 curiosity 6 model organisms 7 fundamental to all animals aka the great integrator August Krogh was a Danish man who won the Nobel for this principle for every physiological question there is an animal ideally suited for providing the answer Kjeli Johansen s principle if you can study an organism in Cleveland then you should study something else There are two main branches of physiology mechanistic evolutionary Mechanistic involves 1 developmental physiology comparative physiology P physiology physiological ecology Evolutionary involves evolutionary physiology and evolutionary processes Adaptation is a change in a specific trait due to the environment This trait increases survival under certain conditions or can increase fitness These characteristics result from selection and has come to be present at a high frequency in a population because it confers an increased probability of survival in a given environment These traits are not always physically visable Evolution is a change in an allele frequency over time between generations Natural selection occurs when there is a variation in traits heritable in DNA and provides a selective advantage that increases fitness Lecture 2 August 27 Ways to determine an adaptation 1 reciprocal transplant experiment 2 look at the phylogenetic reconstruction 3 study lab populations over many generations 4 alter the effect of a characteristic Not all traits in physiology are adaptive Plietrophy is the control of an allele of a single gene is connected with another gene Some mutations neutrally remain in a population Genetic drif are random processes by chance including the bottleneck effect and the founder s effect

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