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Speciation Lab Report

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Submitted By tawnee87
Words 336
Pages 2
Name: T

Date: 1/18/2016

Instructor’s Name: William Stowe

Assignment: SCI203 Phase 2 Lab Report

TITLE: Speciation • Purpose o The purpose of this lab is to evaluate what would happen if a species within a population were suddenly split into 2 groups by an earthquake that would create a physical barrier.

• Introduction o If a population is divided indefinitely by a barrier, the members of the population are unable to breed amongst a group as a whole changing the speciation. Over time the abiotic and biotic conditions may become different on either side of which the earthquake occurred (M.U.S.E.).

• Hypothesis/Predicted Outcome o I would expect if the biotic and abiotic conditions changed it would cause the species to change and the species to either die off or forced to adapt. As we know, what a species is forced to adapt this is what we call evolution and I would see this happening.

• Methods o The initial separation would consist of some species from the mainland reaching the isolated Island, then after that the isolated population would begin to diverge because of the genetic drift and natural selection, then after that overtime divergence may eventually become sufficient to cause reproduction isolation. (M.U.S.E). • Results/Outcome o As a result, Natural selection will cause different selective and adaptive pressures to occur between the two divided populations and they will continue to evolve. Over time this will result in speciation which is the creation of two new species. (M.U.S.E).

• Discussion/Analysis o It is obvious that when an animal or species is put in a different environment that what is natural to that species, they are forced to adapt in order to continue to live. This is also the same and true with behaviors of species when forced to be in a different environment than what was natural.

REFERENCES Audesik, T., Audesirk, G., & Byers, B.E (2008) Biology. Life on Earth with physiology. Upper Saddle River, NJ: Prentice Hall

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