Allopatric speciation Study guides, Class notes & Summaries
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AP BIOLOGY MIDTERM EXAM
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AP BIOLOGY MIDTERM EXAM 
which of the following principles is NOT part of Darwin's original theory of evolution by natural selection? 
A. Evolution is a gradual process that occurs over long periods of time. 
B. Variation occurs among individuals in a population. 
C. Mutations are the ultimate source of genetic variation. 
D. More individuals are born than will survive. 
C 
 
 
If a population is ini Hardy Weinberg equilibrium then: 
A. it is evolving to adapt to environmental changes 
B. the f...
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What is microevolution? - ️️The change in allele frequencies that occurs over time within a population. 
 
What is macroevolution? - ️️Major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types. 
 
What is a species? - ️️A group of populations whose members possess similar anatomical characteristics and have the ability to interbreed. 
 
What is allopatric speciation? - ️️The formation of a new species in po...
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Convergent vs Divergent Evolution - ANSWER -Divergent: one broad class but because of different features they diverge 
 
-Convergent: similar features between 2 different classes 
 
Punctuated Equilibrium vs Gradualism - ANSWER -Punctuated: concrete & defined phenotypes 
 
-Gradualism: phenotypes gradually evolve 
 
Speciation - ANSWER Formation of new species 
 
1) Allopatric: separated by geographical barrier 
 (mountain, ocean, river) 
-Barrier divides species 1 and species 2 
 
2) Parapatric...
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bio 181 exam 1 (kosal) with 100% correct answers
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bio 181 exam 1 (kosal)Compare and contrast the different mechanisms of speciation (allopatric, sympatric, parapatric, peripatric). - correct answer -Allopatric speciation takes place when populations are geographically isolated. Volcano explodes and populations are divided. 
 
-Sympatric occurs without geographic isolation. Occurs through the process of polyploidy: producing individuals with more than two sets of chromosomes. It is a genetic change within a population. 
 
-Parapatric speciation ...
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BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+ | Verified Answers.
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BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+ | Verified Answers. What are the properties of life? - correct answer *Cells and organization 
*Energy use and metabolism 
*Environmental response 
*Regulation and homeostasis 
*Growth and development 
*Reproduction 
*Biological evolution 
When was earth formed? - correct answer 4.55 billion years ago 
When did life on earth first appear? - correct answer 3.5 billion years ago 
What are the evolutionary mechanisms? - corre...
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Macroevolution 
changes in a population over very long periods of time. 
 
 
 
Speciation 
the splitting of one species into two or more new species 
 
 
 
Biological Species Concept 
offers testable way to define a species that does not depend on appearance: 
The members of a species interbreed and have a shared gene pool, & each species is reproductively isolated from every other species. 
Gene flow occurs between the populations of a species, but not between pops of diff species. 
 
 
 
Biolo...
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BIO 182 GCU Exam I Questions & Answers 2024/2025
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BIO 182 GCU Exam I Questions & Answers 2024/2025 
 
 
Aerobes - ANSWERSorganisms that require oxygen to live 
 
Allopatric Speciation - ANSWERSgene flow is interrupted when a population is divided into geographically isolated subpopulations 
 
Anaerobes - ANSWERSorganisms that do not require oxygen to live 
 
Artificial Selection - ANSWERSprocess of deliberately selecting and breeding individuals with desired traits 
 
Biological Species Concept - ANSWERSdefining a species as a population whose ...
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Bio 311D Exam 2 Dr English
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Bio 311D Exam 2 Dr English 
 
To have no change in allele frequencies, you'll need... (H-W assumptions) - 1. No mutations 
2. Random mating 
3. no heritable advantages 
4. enormous population 
5. No incoming/outgoing individuals 
Evolution - change is proportion of alleles in a population 
Descent with modification - 1. organisms look different today 
2. organisms look different than their predecessors 
3. that change in appearance is 
-heritable 
-adaptive 
Natural selection means - ...
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Environmental Science Exam 1 Practice Test Questions & Answers 2023/2024
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Environmental Science Exam 1 Practice Test Questions & Answers 2023/2024 
 
 
When a new species evolves as a result of geographic isolation it is referred to as 
A. sympatric speciation 
B. Natural Speciation 
C. Allopatric Speciation 
D. Resource partitioning - ANSWER-C 
 
Gifford Pinchot believed that resources should be used for the greatest good for the greatest number for the longest time and thus he practiced 
A. Biocentric preservation 
B. Utilitarian conservation 
C.Holistic preservatio...
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BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+.
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BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+. What are the properties of life? - correct answer *Cells and organization 
*Energy use and metabolism 
*Environmental response 
*Regulation and homeostasis 
*Growth and development 
*Reproduction 
*Biological evolution 
When was earth formed? - correct answer 4.55 billion years ago 
When did life on earth first appear? - correct answer 3.5 billion years ago 
What are the evolutionary mechanisms? - correct answer *Nonrando...
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