UCSB EEMB 2 Final Exam 2026
Questions and Answers
Evolution - Correct answer-the process by which different kinds of living
organisms are thought to have developed and diversified from earlier forms during
the history of the earth
Lamarck - Correct answer--invertebrate zoology
-first comprehensive theory of evolution - use/disuse model (giraffes)
-inheritance of acquired characteristics
-importance of environments
Lyell - Correct answer-"Principles of Geology"
-countless small changes occurring over vast periods of time, all according to
known natural laws
-earth is ancient and develops slowly
Malthus - Correct answer--pop growth will always overtake the food supply
Cuvier - Correct answer-comparative anatomy and extinction
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, Hardy-Weinberg principle - Correct answer--Allele and genotype frequencies in a
population will remain constant from gen to gen in the absence of other
evolutionary influences
To remain at H-W equilibrium - Correct answer-1. large breeding pop
2. random mating
3. no change in allele freq due to mutation
4. no immigration or emigration
5. no natural selection
general equation to calculate individual allele frequencies in a two-allele system
(H-W) - Correct answer-freqB = p = (2N[BB] + N[Bb])/2N
*Bb will never be greater than 50%
Effective population size - Correct answer-size of population that can mate
Extinction vortex - Correct answer-mutual reinforcement occurs among biotic +
abiotic processes that drives a population to extinction
Gene flow - Correct answer-transfer of genetic variation from one pop to another
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Questions and Answers
Evolution - Correct answer-the process by which different kinds of living
organisms are thought to have developed and diversified from earlier forms during
the history of the earth
Lamarck - Correct answer--invertebrate zoology
-first comprehensive theory of evolution - use/disuse model (giraffes)
-inheritance of acquired characteristics
-importance of environments
Lyell - Correct answer-"Principles of Geology"
-countless small changes occurring over vast periods of time, all according to
known natural laws
-earth is ancient and develops slowly
Malthus - Correct answer--pop growth will always overtake the food supply
Cuvier - Correct answer-comparative anatomy and extinction
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Hardy-Weinberg principle - Correct answer--Allele and genotype frequencies in a
population will remain constant from gen to gen in the absence of other
evolutionary influences
To remain at H-W equilibrium - Correct answer-1. large breeding pop
2. random mating
3. no change in allele freq due to mutation
4. no immigration or emigration
5. no natural selection
general equation to calculate individual allele frequencies in a two-allele system
(H-W) - Correct answer-freqB = p = (2N[BB] + N[Bb])/2N
*Bb will never be greater than 50%
Effective population size - Correct answer-size of population that can mate
Extinction vortex - Correct answer-mutual reinforcement occurs among biotic +
abiotic processes that drives a population to extinction
Gene flow - Correct answer-transfer of genetic variation from one pop to another
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
