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Bio 100 Exam 3 (Jaeger UNLV); Questions & Answers 100% Verified

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Bio 100 Exam 3 (Jaeger UNLV); Questions & Answers 100% Verified Evolution Correct answer-Any genetically based change of phenotype in a population over successive generations Common Decent with Modification Correct answer-species undergo modification through successive generations changes...

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  • August 8, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Bio 100 Exam 3 (Jaeger UNLV); Questions &
Answers 100% Verified
Evolution Correct answer-Any genetically based change of phenotype in a population
over successive generations




Common Decent with Modification Correct answer-species undergo modification
through successive generations

changes in species can lead to formation of new, separate species




Species Correct answer-different kinds of organisms

individuals of the same species share genetic similarity and can potentially interbreed




population Correct answer-all the individuals of the same species occupying a specific
area over a particular time




Fitness Correct answer-successful reproduction - leaving behind copies of yourself




natural selection Correct answer-agent of evolution

the process through which a trait or character that confers reproductive advantage to an
individual spreads in a population over successive generations




biotic potential Correct answer-most populations are capable of producing more
offspring then can be supported by the environment

, Bio 100 Exam 3 (Jaeger UNLV); Questions &
Answers 100% Verified

heritable Correct answer-pass it onto the next generation




overtime... Correct answer-the beneficial traits spread through the population




Competition for natural selection Correct answer-genetic traits that provided an
advantage will be spread within a population, but those tat do not will be lost from the
population




What evolves? Correct answer-populations




Evolution of acquired characters Correct answer-overtime, an organism could acquire
enough changes that one species could diverge into two

this branching extended back in time, ancestral species to ancestral species and so on




Five agents of evolution: Correct answer-natural selection

sexual selection

gene flow

genetic drift

mutation

, Bio 100 Exam 3 (Jaeger UNLV); Questions &
Answers 100% Verified
mutation Correct answer-a change in DNA sequence




mutation is Correct answer-the means by which new genetic information is
generated...most are detrimental or harmless, but a rare few are beneficial to an organisms
fitness




beneficial mutation Correct answer-building blocks of evolutionary change




whose theory was "Shorter Neck Giraffes Dieing" Correct answer-Darwin's Theory




gene flow Correct answer-the movement of alleles from one population to another by
migration




gene flow introduces Correct answer-'novel' alleles to a population from some other
population




genetic drift Correct answer-chance alteration of allele frequencies in a population




founder effect Correct answer-colonization of new habitat y a few individuals that give
rise to a new population. note: founding individuals do not represent the total genetic variation
in original population

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