Sympatric speciation - Study guides, Class notes & Summaries
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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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JMU BIO 150 Exam 2
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JMU BIO 150 Exam 2 
Define macroevolution ️evolutionary change above the species level, including the origin of a new 
group of organisms or a shift in the broad pattern of evolutionary changes over time 
How do we identify a species? ️groups of actually or potentially interbreeding populations that are 
reproductivley isolated from other such groups 
Define reproductive isolation ️cannot produce viable offspring 
Define viable ️offspring can reproduce 
Define speciation ️splitt...
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Edexcel A level Biology 2023 ( Question and answers A+ Graded)
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Molecular phylogeny correct answers It compares the structure of a particular molecule from different organisms to discover their degree of evolutionary relation. 
 
Somatic cell correct answers A cell in an organism which isn't a gamete. 
 
DNA correct answers Deoxyribose nucleic acid. Carries the genetic information for cells and some viruses. 
 
mRNA correct answers Messenger ribose nucleic acid (single stranded). The product of transcription. 
 
Speciation correct answers The process throug...
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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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PEQ WEEK 4-6 QUESTIONS & ANSWERS RATED 100% CORRECT
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A population of rodents, called population A, lived on a large landmass. One group of the population 
dispersed to a nearby island. Two million years later, the island population split into two smaller, equalsized populations when a river formed across the middle of the island. Now two new species, A1 and A2, 
have evolved on the island. They have replaced the population from which they were derived. Use the 
image to answer the question.Which diagram represents the phylogeny of the populations ...
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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+ | 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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Biology 1108 final exam Questions and Answers 100% Pass
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Biology 1108 final exam Questions and 
Answers 100% Pass 
Monophyletic Group - Correct Answer ️️ -includes all the descendants of a common 
ancestor, and its considered a natural grouping of organisms based on a shared 
ancestry. 
Paraphyletic Group - Correct Answer ️️ -some (not all) of descendants of a common 
ancestor 
Polyphyletic Group - Correct Answer ️️ -organisms from distinct lineages based on 
shared characters, but no common ancestor 
Homologies - Correct Answer ️️ -si...
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Bio 114 Binghamton Test 1 Updated Questions and Answers 2024
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Contrivance - an adaptation that is a result of the modification of a previous ancestor 
 
Adaptation - A trait that helps an organism survive and reproduce 
 
Exaptation - evolutionary adaptation of an existing structure for a completely new purpose 
 
Vestigial Trait - A trait inherited from a common ancestor but is no longer used 
 
dipliod cell - cell that has 2 copies of each chromosome, one from egg, one from sperm (46) 
 
Hapliod - having a single set of unpaired chromosomes, one egg (23)...
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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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