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Chapter 13 and 14 Review
Chapter 13 and 14 Review

... List and identify all 5 variables of the H-W equation.  p = frequency of the dominant allele (A)  q = frequency of the recessive allele (a)  q2 = frequency of homozygous recessive (aa)  p2 = frequency of homozygous dominant (AA) ...
Chapter 13 and 14 Review
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... List and identify all 5 variables of the H-W equation.  p = frequency of the dominant allele (A)  q = frequency of the recessive allele (a)  q2 = frequency of homozygous recessive (aa)  p2 = frequency of homozygous dominant (AA) ...
Evolution Focuses
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... change was more gradual than rapid, and that it had required millions of years to do so (“Introduction to Evolutionary Biology”). Darwin found that the main mechanism of evolution was something he called natural selection. Natural selection essentially means that in a particular environment, the ind ...
Name - Humble ISD
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... 1.1.4. Define and describe examples of evolution by artificial selection (examples to know: dog domestication, edible plants from mustard, herbicide/antibiotic resistant organisms). 1.1.5. Explain evolution by natural selection and include Darwin’s 5 key ideas. 1.1.6. Define fitness and adaptations ...
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... b. extremely similar beak shapes and habits c. adapted to eating seeds with thick, tough coats d. evolved from a common ancestor. _______3. The major idea that Darwin presented in his book The Origin of Species was that a. species change over time and never compete with each other. b. animals change ...
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... b. billions of years c. reproductive isolation d. all of the above 7. What is the importance of Modern Synthesis ideas of Evolution? a. it completely contradicts everything Darwin said and supports Lamarck's theories b. it shows how current humans are no longer evolving because they have reached evo ...
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... 1. All of the finches came from the same 2 parent finches. 2. The birds reproduced and some of their offspring flew to different islands. 3. Each population adapted to their unique environment. 4. Finches prefer not to fly long distances. ...
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... The idea that parts of the body that are used extensively become larger and stronger , while those that are not used deteriorate. ...
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Chapter 32 Theories of Evolution

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The Evidence for Evolution by Natural Selection

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Developing a Theory of Evolution - biology-rocks
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Evolution
Evolution

... catastrophism, that there have been violent and sudden natural catastrophes - plants and animals were often killed off then new life forms moved in from other areas. The fossil record shows abrupt change in species (his evidence). ...
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Punctuated equilibrium



Punctuated equilibrium (also called punctuated equilibria) is a theory in evolutionary biology which proposes that once species appear in the fossil record they will become stable, showing little net evolutionary change for most of their geological history. This state is called stasis. When significant evolutionary change occurs, the theory proposes that it is generally restricted to rare and geologically rapid events of branching speciation called cladogenesis. Cladogenesis is the process by which a species splits into two distinct species, rather than one species gradually transforming into another. Punctuated equilibrium is commonly contrasted against phyletic gradualism, the belief that evolution generally occurs uniformly and by the steady and gradual transformation of whole lineages (called anagenesis). In this view, evolution is seen as generally smooth and continuous.In 1972, paleontologists Niles Eldredge and Stephen Jay Gould published a landmark paper developing their theory and called it punctuated equilibria. Their paper built upon Ernst Mayr's model of geographic speciation, I. Michael Lerner's theories of developmental and genetic homeostasis, as well as their own empirical research. Eldredge and Gould proposed that the degree of gradualism commonly attributed to Charles Darwin is virtually nonexistent in the fossil record, and that stasis dominates the history of most fossil species.
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