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Evolution - Smyth County Schools
Evolution - Smyth County Schools

... calling it “natural selection” • Observed the change from Australian to Asian species in the Indonesian Islands • Darwin simply did not want to be scooped! His ego would not allow it! http://www.thebeagleproject.com/2007/03/i-am-afraid-ships-on-fire-or-why-this.html ...
AP Exam Review. Units 5 and 6
AP Exam Review. Units 5 and 6

...  Convergent evolution and the similarities among species in a particular biome.  Natural selection and formation of insecticide-resistant insects or antibiotic-resistant bacteria  Speciation and isolation  Natural selection and behavior such as kinesis, fixed action pattern, aggression, etc.  N ...
Lecture 2 History and Evidence for Evolution
Lecture 2 History and Evidence for Evolution

... entities, but evolve over time. All species derive from very different species living in the past. This theory was not entirely new, but Darwin provided convincing evidence for it. 2. The primary cause of evolutionary change is natural selection. Species change over time because bearers of different ...
Welcome to Biology 122
Welcome to Biology 122

... Darwin’s Four Postulates • Evolution is a logical outcome of four postulates… – populations have natural variation – the organism’s features are heritable – more offspring are produced than can survive – some individuals produce more offspring because of the environment ...
Wilmot Evolution Review
Wilmot Evolution Review

... Over generations, the members of isolated populations may become more and more different. Isolated populations may become genetically different, as those that are better adapted to the new environment survive and reproduce. Random processes such as mutation and genetic drift can also effect evolutio ...
Study Guide for Evolution Test • Be sure to know all
Study Guide for Evolution Test • Be sure to know all

... Study Guide for Evolution Test  Be sure to know all your vocabulary words.  Know what Wegner proposed and the evidence he used to support his theory.  Know types fossil is and how they are formed  Know what index fossils are and how they’re used.  Be able to apply the Law of Superposition  How ...
Darwin and Evolutionary Theory
Darwin and Evolutionary Theory

... enables it to survive in the heat better. It is likely that It will produce offspring with the same phenotype, and they will produce offspring, etc. • After several generations, this would result in an increase in the number of dogs with this mutation. ...
CH. 16.1 – Genes and Variation How Common Is Genetic Variation
CH. 16.1 – Genes and Variation How Common Is Genetic Variation

... •___________________________ isolation Behavioral Isolation Behavioral isolation occurs when two populations are capable of breeding with one another but have _________________________________________ or other reproductive strategies that involve behavior. Geographic Isolation Geographic is ...
Evolution Name: Date: 1. The diagrams below show
Evolution Name: Date: 1. The diagrams below show

... Which of the following statements gives the most likely explanation for the presence of two very similar species of squirrels living on opposite sides of the Grand Canyon? A. ...
Species A
Species A

... (4) geographic isolation ...
Theory of Evolution
Theory of Evolution

... that become extinct (natural disaster, climate changes etc..) ...
Notes - Haiku Learning
Notes - Haiku Learning

... 1. Evolution: process of cumulative change in the heritable characteristics of a population a) Heritable: changes must be passed on genetically from one generation to the next: doesn’t happen overnight b) Cumulative: stress the fact that one change is usually not enough to have a major impact on a s ...
Evolution - Harrison High School
Evolution - Harrison High School

... spurts of relatively rapid change followed by a long period of no change. ...
CH05 IM
CH05 IM

... C. Knowledge of past life comes from fossils, ice-core drilling, chemical analysis, and DNA analysis. These records are incomplete 5-2 Evolution and Adaptation Evolution is the change in a population’s genetic makeup over time. A. Populations evolve by becoming genetically different. B. All species ...
Darwin and Evolution
Darwin and Evolution

... at both ends of the distribution. These mice have colonized a patchy habitat made up of light and dark rocks, with the result that mice of an intermediate color are at a disadvantage. ...
Chapter 7 Evolution of Living Things
Chapter 7 Evolution of Living Things

... other aspects of evolution are still investigated and debated. In the space below, express your opinion of this term. Answers will vary among students. It is an opinion. DIRECTIONS: Read the paragraphs below. Highlight (or underline) at least 2 important facts in each paragraph. Gradualism is select ...
UNIT B: EVOLUTION
UNIT B: EVOLUTION

...  The key to understanding how traits are passed from one generation to the next is DNA analysis  Scientists can tell how closely related organisms are by studying their DNA  There does not have to be that much of a difference in a gene sequence to be a different organism! ...
Evidence of Evolution
Evidence of Evolution

... between individuals that vary in heritable traits and their environment ...
Evolution Notes
Evolution Notes

... … so the light trait was more common The dark moths survived and reproduced better after the IR because they camouflaged well on trees with dark bark (due to pollution)… so the dark trait became more common ...
Lecture 3 - WordPress.com
Lecture 3 - WordPress.com

... Reproductive success - favorable traits are passed on with a higher frequency compared to less advantageous traits which decrease in frequency over time. 7. Over extended intervals of time favorable variations accumulate in a population so much so that newer generations are distinct from ancestral g ...
Ontology of Evolution: Species, Units, and Levels
Ontology of Evolution: Species, Units, and Levels

... of selection was initiated by Wynne-Edwards' book. He argued that there are group-level adaptations…which inform individuals of the size of the population so that they can adjust their breeding for the good of the population. He was clear that such adaptations could evolve only if populations were u ...
Artificial selection - 7sciencewithmcmillan
Artificial selection - 7sciencewithmcmillan

... The Theory of Evolution is the process by which different kinds of living organisms are thought to have developed and changed from earlier forms during the history of the earth. Microevolution (natural selection; changes within species) Macroevolution (one species changes to another species) ...
Document
Document

... will remain constant unless one or more factors cause those frequencies to change. The situation in which allele frequencies remain constant is called genetic equilibrium . ...
File
File

... 17. Certain lizards have coloring that allows them to blend into the background of their environment to hide from predators. This is an example of a(n): a. ...
Ch.16 and 17 notes
Ch.16 and 17 notes

... Random mating- no preference in mate selection Large population size- so that small changes will not be significant No migration- no gene flow: no new alleles brought into the population No mutations- no new alleles added to the population No Natural selection- all organisms are reproductively succe ...
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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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