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BIO 182 – Exam 2 Review Questions (Arizona State University) – Complete Practice with Correct Answers

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This document compiles a full set of practice questions and correct answers for BIO 182 at Arizona State University, specifically designed for Exam 2. Topics include evolutionary biology, phylogenetics, species concepts, genetic drift, gene flow, thermal biology, and organismal stress responses.

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niche ~CORRECT ANSWER~✓✓range of environmental conditions in which a
genotype can persist



abiotic ~CORRECT ANSWER~✓✓physical conditions



biotic ~CORRECT ANSWER~✓✓other organisms



which are the strongest bonds ~CORRECT ANSWER~✓✓covalent bonds



low temps ~CORRECT ANSWER~✓✓more flexible enzymes



high temps ~CORRECT ANSWER~✓✓more rigid enzymes



Do enzymes maintain a rigid structure while catalyzing? ~CORRECT
ANSWER~✓✓No it is constantly changing



adaptive plasticity ~CORRECT ANSWER~✓✓one genotype has multiple
phenotypes & environments trigger change



genetic drift ~CORRECT ANSWER~✓✓evolution caused by random processes
in population in a population of finite size

, Do smaller or larger populations have more chance for genetic drift? ~CORRECT
ANSWER~✓✓Smaller populations



homology ~CORRECT ANSWER~✓✓phenotype that is similar between two
species because of common ancestry



homoplasy ~CORRECT ANSWER~✓✓phenotype that is similar between two
species because of convergent evolution



parsimony ~CORRECT ANSWER~✓✓the simplest explanation is the best
(fewest evolutionary transitions) A-->B-->C = common A-->B-->A = uncommon



migration load ~CORRECT ANSWER~✓✓maintenance of deleterious alleles by
migration



Which traits are more informative? ~CORRECT ANSWER~✓✓Shared derived
traits (synapomorphy)



Which traits provide no information? ~CORRECT ANSWER~✓✓Shared
ancestral traits (pleisiomorphy)



Which traits provide false info? ~CORRECT ANSWER~✓✓Convergent traits
(homoplasy)



allopatry ~CORRECT ANSWER~✓✓populations occur in different places

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