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James Hutton 1. Geological time Charles Lyell Thomas Malthus
James Hutton 1. Geological time Charles Lyell Thomas Malthus

... 4. not all produce same number of offspring (Darwinian fitness). Æ Traits of those with most reproduction dominate in subsequent generations of a population and cause it to evolve. ...
A a A A A A A a a a a a a a a A a A A A A A A AA A A a a
A a A A A A A a a a a a a a a A a A A A A A A AA A A a a

... Shaping Evolutionary Theory Section 15.3 ...
Survival of the Fittest: An Evolutionary Theory of Financial History
Survival of the Fittest: An Evolutionary Theory of Financial History

... Goldman Sachs said it “The Evolution of Excellence” (Conference in London, November 2005) ...
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Changes Over Time

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Evolution Test: Practice
Evolution Test: Practice

... According to Darwin’s theory of natural selection, the individuals that tend to survive are those that have a. characteristics their parents acquired by use and disuse. b. characteristics that plant and animal breeders value. c. the greatest number of offspring. d. variations best suited to environm ...
Ch 22 Activity List File
Ch 22 Activity List File

... Describe the experiments that supported Endler’s hypothesis that differences in color patterns in male guppies are due to selective pressure based on predation. Describe how natural selection favors the evolution of drug-resistant pathogens. Explain how the fossil record may be used to test our curr ...
Evolution - Logan Petlak
Evolution - Logan Petlak

... a warm furry coat, the ability to make burrows to live in and the ability to collect and store food for the winter. The selective pressure of cold weather means that animals that don't have these characteristics and are less likely to survive and reproduce. In a hot, dry climate, plants will have an ...
Chapter 13: The Theory of Evolution
Chapter 13: The Theory of Evolution

... 1000 km (620 mi.) off the coast of Ecuador. Darwin was struck by the fact that many of the plants and animals of the Galapagos Islands resembled those of the nearby coast of South ...
Section 15.2 Summary– pages 404-413
Section 15.2 Summary– pages 404-413

... • Another type of body feature that suggests an evolutionary relationship is a vestigial structure—a body structure in a present-day organism that no longer serves its original purpose, but was probably useful to an ...
notes pdf - Auburn University
notes pdf - Auburn University

... B. Darwin signed on as the captain’s companion on board the H.M.S. Beagle, on which he took a five-year voyage from 18311836 exploring South America and surrounding islands, as well as islands in the South Pacific C. His private work on the voyage was as a naturalist, collecting and cataloging thous ...
Darwin and the Theory of Natural Selection
Darwin and the Theory of Natural Selection

... represented by fossils o Insisted on fixity of species o Didn’t make connections between fossils and living species o Catastrophism: geological landscape is a result of cataclysmic events. These made life forms go extinct; Organisms went extinct and were repopulated by new organisms of modern appear ...
Evolution by Natural Selection
Evolution by Natural Selection

... Theory of Evolution by Natural Selection Theory- well-tested explanation that unifies a broad range of ...
Evolution - Industrial ISD
Evolution - Industrial ISD

... – Individuals will move into or out of a population (migration) and will add alleles to the population or remove them – Ex: when wind carries seeds far beyond the bounds of the parent plant population the genes are removed from the original population and then added to the new population ...
Evolution by Natural Selection
Evolution by Natural Selection

... Theory of Evolution by Natural Selection Theory- well-tested explanation that unifies a broad range of ...
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Taxonomy and Phylogeny

... • Speciation: the splitting of a population of organisms into two differernt distinct groups that are unable to mate successfully • A node is a location in a phylogeny where a speciation event has occurred ...
Evolution - Georgia Standards
Evolution - Georgia Standards

... or no offspring. These genes would not be lost from the gene pool, however. Instead, they would be maintained in low frequency for generations through the heterozygotes, in whom only the dominant genes are expressed. Then someday those recessive genes might have some survival value if the natural en ...
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...  Variation is the raw material for natural selection  there have to be differences within population ...
Unit 7: Evolution - Blue Valley Schools
Unit 7: Evolution - Blue Valley Schools

... _____ 15. A genetic change that caused a certain Hox gene to be expressed along the tip of a vertebrate limb bud instead of farther back is thought to have made possible the evolution of the tetrapod limb. This type of change is illustrative of A. the origin of a new species due to allopolyploidy. B ...
genetic equilibrium
genetic equilibrium

... – Natural selection happens where one genotype becomes more fit for the environment, and survives to reproduce more often • H-W principle is kind of a “what if”. We know what it takes for evolution to occur, what would it take for evolution NOT to occur? ...
Selection and Speciation
Selection and Speciation

... interbreeding natural populations that ordinarily do not interbreed with other such groups even when there is opportunity to do so. ...
11 EVOLUTION AND NATURAL SELECTION
11 EVOLUTION AND NATURAL SELECTION

... 1. Mammals evolve slowly, and certain groups of fish evolve even more slowly. 2. Two opposing viewpoints about how rapidly speciation occurs are now being hotly debated. 3. A hypothesis of gradual evolutionary change, called gradualism, assumes that macroevolution occurs at a constant, gradual pace. ...
Evolution Study Guide
Evolution Study Guide

... Are humans thousands, millions, or billions of years old? Precambrian time =_______% of Earth’s history!!!!! 7. What is a common ancestor and are ALL species related to each other? 8. What is the common ancestor to all species? When did this species first evolve? 9. Name several ways a species can b ...
Evolution - Byron High School
Evolution - Byron High School

... 2. List the major events that led to Charles Darwin’s development of his theory of Evolution by means of Natural Selection 3. Summarize the major events of the Geologic Time Scale 4. Compare and contrast early experiments that support the concept of biogenesis and disproved spontaneous generation 5. ...
Evolution
Evolution

... Natural Selection acts on variations • Variations can be inherited and they are controlled by alleles • Allelic frequencies in a pop’s gene pool will change over generations due to natural selection. • Three types of natural selection: Stabilizing, directional and distruptive ...
Hardy- Weinberg Principle A. conditions for genetic equilibrium
Hardy- Weinberg Principle A. conditions for genetic equilibrium

... Also, many plants, and some animals, form hybrids in nature. Hooded crows and carrion crows look different, and largely mate within their own groups—but in some areas, they hybridize. Should they be considered the same species or separate species? ...
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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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