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Unit 8: Evolution - Sonoma Valley High School
Unit 8: Evolution - Sonoma Valley High School

... 6. Make of flow chart of the both the changes and causes of the changes in horses over the past 60 million years. 7. Explain how the following are used to support the theory of evolution: homology, development, and imperfect structures. After reading pg: 436-446: Define the following terms: speciati ...
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... Explain how four mechanisms listed above can cause genotypic and phenotypic variation within a population Mutation: your genetic sequences changes as does your physical appearance Migration: reduces genetic variation so that organisms have similar genotypes and phenotypes Genetic drift: changes the ...
CHAPTER 16 EVOLUTION OF POPULATIONS
CHAPTER 16 EVOLUTION OF POPULATIONS

... beaks had different chances of survival ...
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Core Case Study: Why Should We Care about the American Alligator?

...  Taxonomy – science of classifying organisms • Assigns each organism a universally accepted name that has biological significance ...
Mechanisms of Evolution
Mechanisms of Evolution

... Addressed how one species could evolve into another. Some of his mechanisms are close Lamarckism (as were some of Charles’). He also talked about competition and sexual selection causing changes in species: “The final course of this contest among males seems to be, that the strongest and most active ...
Mechanisms of Evolution Background of a Theory
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... Addressed how one species could evolve into another. Some of his mechanisms are close Lamarckism (as were some of Charles’). He also talked about competition and sexual selection causing changes in species: “The final course of this contest among males seems to be, that the strongest and most active ...
Pre-AP Evolution Test Review
Pre-AP Evolution Test Review

... fitness, biodiversity, adaptations, artificial/natural selection, , vestigial, homologous, transitional forms, index fossils, relative dating, radioactive/ radiometric dating, anatomical structures, ...
Natural Selection and the Evidence of Evolution
Natural Selection and the Evidence of Evolution

... for the theory of evolution by natural selection • Sailed on HMS Beagle for 5 years studying and collecting biological and fossil specimens ...
COREE CURRICULUM ASSESSMENT REPORT
COREE CURRICULUM ASSESSMENT REPORT

... C. genetic homology D. analogy/convergent evolution 10. What is an adaptation? A. a trait that improves the fitness of its bearer, compared with individuals without the trait B. a trait that changes in response to environmental influences within the individual’s lifetime C. an ancestral trait—one th ...
Evolution Evolution is the process of change in all forms of life over
Evolution Evolution is the process of change in all forms of life over

... From a Neo-Darwinian perspective, evolution occurs when there are changes in the frequencies of alleles within a population of interbreeding organisms. Mechanisms that can lead to changes in allele frequencies include natural selection, genetic drift, genetic hitchhiking, mutation and gene flow. Evo ...
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... Enter Data Here ...
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File

... generation. Sometimes the changes of evolution are so great that a completely new species population is formed. The new species population can’t interbreed with the original population. This process is called speciation. Consequences of emergency of new species population by natural selection: 1. No ...
Name: Date: Period: ______ Unit 8, Part 3 Notes: Patterns of Natural
Name: Date: Period: ______ Unit 8, Part 3 Notes: Patterns of Natural

... environmental conditions), they may change so much that they are no longer able to mate in nature and produce viable, fertile offspring. At this point, we would say they have become two different species, a process called speciation. c) Typically, speciation occurs when two populations of the same s ...
Patterns of Evolution
Patterns of Evolution

... – Evolution on a small scale within a single population ...
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Natural Selection

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Evolution Practice Test (H)

... these animals do not share a recent common ancestor. This is an example of A) divergent evolution ...
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Evolution

... ◦ The idea that life arises from non-life  Ex: mud gives rise to worms?? We can make mice out of hay?? ...
Unit #1: Evolution - Achievement First
Unit #1: Evolution - Achievement First

... equilibrium, where speciation occurs in bursts followed by periods of stasis. Adaptive radiation is the formation of several new species from one common ancestor and occurs when new habitats become available Speciation can be rapid during times of ecological stress, such as the five major extinction ...
Lamarck`s Theory of Evolution Tendency Toward Perfection
Lamarck`s Theory of Evolution Tendency Toward Perfection

... • 1. The organisms steadily evolve over time (evolution theory) • 2. Different kinds of organisms descended from a common ancestor (common descent theory) • 3. Species multiply over time (speciation theory) • 4. Evolution takes place through the gradual change of populations (gradualism theory) • 5. ...
Evolution
Evolution

... their traits, and many traits are inherited, some individuals will prove better at surviving and reproducing. Their genes will be passed on and become more prominent in future generations. • Mutations and recombination provide the genetic variation for natural selection. • We have produced out pets, ...
Evolution - Madison County Schools
Evolution - Madison County Schools

... as those left behind thus the “starting ingredients” with which evolution to act on are not as good. ...
Additional Study Guide File
Additional Study Guide File

... o Define and give an example of a Vestigal Structure o Define and give an example of a Homologous Structure o Explain how DNA evidence support Darwin’s ideas about evolution o Similarities in Embryology o Artificial Selection  Process of Speciation o Identify an important factor that is necessary f ...
Biology 1B Evolution practice questions Fall 2002 Thomson
Biology 1B Evolution practice questions Fall 2002 Thomson

... C. the potential for population growth exceeds what the environment can support. D. species become better adapted to their local environments through natural selection. E. favorable variations accumulate in a population after many generations of being by natural selection. ...
Miller Chapter 4 Review Material Chapter 4: Biodiversity and
Miller Chapter 4 Review Material Chapter 4: Biodiversity and

... time through changes in the genes of populations of organisms in succeeding generations. 1. Theory of Evolution – all species evolved from earlier, ancestral species. a. AKA – Life comes from life 2. Natural selection is a mechanism for biological evolution, in which individuals with certain traits ...
b - Mr. Shanks` Class
b - Mr. Shanks` Class

... were reported to be abundant, living among the rocks and shrubs now covering the island. In the present population, the "flight membranes" are mostly too small to be functional. The most probable explanation for this change is which of the following? a) b) c) d) e) ...
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Speciation



Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook was the first to coin the term 'speciation' for the splitting of lineages or ""cladogenesis,"" as opposed to ""anagenesis"" or ""phyletic evolution"" occurring within lineages. Charles Darwin was the first to describe the role of natural selection in speciation. There is research comparing the intensity of sexual selection in different clades with their number of species.There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments. Whether genetic drift is a minor or major contributor to speciation is the subject matter of much ongoing discussion.
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