Sympatric speciation Study guides, Class notes & Summaries
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Biology 1108 final exam (Questions & Answers) Passed!!
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Monophyletic Group - Answer-includes all the descendants of a common ancestor, and its considered 
a natural grouping of organisms based on a shared ancestry. 
Paraphyletic Group - Answer-some (not all) of descendants of a common ancestor 
Polyphyletic Group - Answer-organisms from distinct lineages based on shared characters, but no 
common ancestor 
Homologies - Answer-similarities based on shared ancestry 
Analogies - Answer-similarities based on independent adaptations 
Synapomorphies - Answ...
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BIO120 TEST 2 UOFT LECTURE 9-15 RATED A+
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BIO120 TEST 2 UOFT LECTURE 9-15 
 
RATED A+ 
 
taxonomic diversification 
divergence causing a change in species name 
Taxonomy 
The scientific study of how living things are classified; like the vocabulary to the grammar of 
systematics 
Carol Linnaeus 
"Father of Taxonomy"; established his classification of living things; famous for animal naming 
system of binomial nomenclature; came BEFORE Darwin 
sympatric 
within a region 
Allopatric 
across regions 
taxonomic (morphological) naming of s...
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NRES 101 Midterm 100% VERIFIED SOLUTIONS 2023//2024
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NRES 101 Midterm 
100% VERIFIED 
SOLUTIONS 
2023//2024 
T/F: Species diversity increases as you approach the equator - ANSWER True 
What are possible reasons why more species occur near the equator - ANSWER - 
More time without geological disruptions (e.g., glaciers) 
- More niches 
- Climatic stability 
- Greater biological productivity 
What is speciation - ANSWER The formation of 2 species from 1 ancestral species 
What factors lead to speciation - ANSWER - natural selection 
- sexual selec...
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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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ENWC 201 Exam 1 All Possible Questions and Answers with complete solution
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he world, in the US - 5500, 965 
Number of threatened/endangered mammal species - 1000 
What separates mammals from birds, reptiles, and amphibians - Mammals have hair, mammary 
glands, and three ear bones. 
What distinguishes birds from mammals, reptiles, and amphibians - Feathers 
Number of species of birds in the world, in North America, in the US - 9900, 2000, 925 
Number of threatened/endangered bird species - over 1000 
Number of reptile species in the world - 8200 
Number of reptile speci...
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AP Biology Exam Questions and Answers Graded A+
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AP Biology Exam Questions and Answers Graded A+ 
What are the 2 theories of evolution? Explain each 
Gradualism- geologic changes result from slow, gradual, continuous process 
Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. 
 
 
What was Lamarck's theory and why was it wrong? 
Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on 
 
 
What is natural selection 
Comptetition for limited resources re...
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BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+)
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BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+) 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 *Nonrandom mating 
*Migration 
*Genetic drift 
*Natural selection 
When does allopatric speciation occur? - correct answer when members of the same species become 
geographically separated 
When does sympatric speciation oc...
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BIO 150 Final Exam – Ecology Questions & Answers
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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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BSC 108 Exam 4 | 75 Questions with 100% Correct Answers | Verified | Latest Update 2024
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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 populations that are geographi...
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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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