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... What is evolution? What is natural selection? Define and Explain using an example What is Lamarck’s theory of evolution? Provide an example Which scientist is credited with the theory of natural selection? Which islands are the most famous because of Darwin’s travels? What did he observe on the isla ...
Milam-Hist392-Evolution Syllabus
Milam-Hist392-Evolution Syllabus

... By interweaving intellectual and cultural threads, this course covers the history of evolutionary theory from Charles Darwin (and the scholars on whom he drew), through Dobzhansky and Gould, to the late 20th century. Throughout this century and a half we will explore how biologists invested in evolu ...
Jerry A. Coyne. Why Evolution is True. New York: Viking, 2009. 282
Jerry A. Coyne. Why Evolution is True. New York: Viking, 2009. 282

... promotes a young earth and universe, flood geology, contemporaneous existence of almost all fossil creatures, and attacks the Neo-Darwinian theory of biological evolution vigorously. The broad exposure of the American public to the Creation Museum and, consequently, the arguments for Recent Creation ...
Honors Evolution Power Point 201
Honors Evolution Power Point 201

... • Darwin was strongly influenced by his book Principles of Geology • Gradual forces gradually change Earth’s surface and these forces are still operating today. • Because of Lyell, Darwin believed that slow natural processes such as growth of mountains due t o earthquakes could account for the prese ...
as do modern sea lions
as do modern sea lions

... – Hypotheses, such as Tutt’s, are put forth and then tested; if rejected, new hypotheses are formulated, and the process begins anew ...
Document
Document

... A Brief History of (Molecular) Evolution ...
Biol. 4974/5974 Lecture #2
Biol. 4974/5974 Lecture #2

...  Ironically, genetics caused a further rift: The naturalists were evolutionists and studied natural populations.  The new geneticists considered mutation as the major mechanism of evolution; they did not see how natural selection could change gene frequencies. ...
Evolution - Mr. Jones Jaguars
Evolution - Mr. Jones Jaguars

...  Darwin hypothesized that new species could appear gradually through small changes in ancestral species.  Darwin inferred that if humans could change species by artificial selection, then perhaps the same process could work in nature. ...
by natural selection
by natural selection

... • Lamarck proposed an incorrect mechanism for how organisms evolve. ...
Evolution final project
Evolution final project

... Phylogenetic Tree: Includes a cladogram illustrating the organism’s history of descendants (at least 5) with shared derived characteristics listed on the phylogenetic tree. Look at examples to help you. Evidence: Includes but not limited to picture of similar embryo of related species, picture/diagr ...
Evolution PowerPoint
Evolution PowerPoint

... SO THEY SHARE A GENE POOL-COMBINED GENETIC MAKEUP OF ALL MEMBERS IN A ...
Modern toothed whales - Sonoma Valley High School
Modern toothed whales - Sonoma Valley High School

... – Hypotheses, such as Tutt’s, are put forth and then tested; if rejected, new hypotheses are formulated, and the process begins anew ...
abstracts
abstracts

... (Poster, w. Jacob Jahoansson) The well known extinctions events seen in the fossil record have been given various exogenous and endogenous explanations, such as asteroid impacts, changes in the sea level, or a competitive displacement of one taxon by another. A competitive displacement can be descri ...
Chapter 7 - Southern Local Schools
Chapter 7 - Southern Local Schools

... • This combination of principles explained that the variations Darwin observed within a species are caused by mutation, or changes in a gene. • Since Darwin’s time new evidence has been collected from many fields of science. Although scientists recognize that other mechanisms may also play part in t ...
Here
Here

... common than in the previous generation. All of these mechanisms can cause changes in the frequencies of genes in populations, and so all of them are mechanisms of evolutionary change. However, natural selection and genetic drift cannot operate unless there is genetic variation — that is, unless some ...
Evolution PowerPoint
Evolution PowerPoint

... that forms around the disc. Large zones mean the bacteria are sensitive to the drug, small or nonexistent zones are signs of resistance. Image Courtesy: Centers for Disease Control and ...
Unit 6
Unit 6

... Nonrandom mating – as a population continues to mate within itself, heterozygotes tend to diminish, replaced instead by homozygotes. Natural selection – differential success in reproduction. It accumulates and maintains favorable genotypes in a population so it can survive. These genotypes however, ...
chapter 6
chapter 6

... a. Geographic isolation: physical separation for long time periods b. Reproductive isolation: the gene pools are so changed that members become so different in genetic makeup that they cannot produce fertile offspring 2. Sympatric speciation is less common. It occurs when two species live close toge ...
Evolution
Evolution

... • 4. What is a fossil? • 5. Darwin found fossils of many organisms that were different from any living species. How would this finding have affected his estimates of biological diversity? ...
Bio 1B, Spring, 2008, Evolution section 1 of 3 Updated 2/28/08 10
Bio 1B, Spring, 2008, Evolution section 1 of 3 Updated 2/28/08 10

... cannot perfectly predict the weather even one day in advance. The uniformitarian assumption is the basis for all historical science, including astronomy, geology, and archeology. The acceptance of the idea that all past events were governed by laws that can be studied today led an intellectual revol ...
blackline master 1-1
blackline master 1-1

... A This scientist argued that the formation of Earth’s crust took place through countless small changes occurring over vast periods of time, all according to known natural laws. His “uniformitarian” proposal was that the forces molding the planet today have operated continuously throughout its histor ...
Evolution: Anti-speciation in Walking Sticks
Evolution: Anti-speciation in Walking Sticks

... walking sticks acts as an anti-speciation phenotype. This actively counteracts speciation and offers a general mechanism to explain the porous nature of species boundaries. ‘‘The steady and high genetic input caused by gene flow is the main factor responsible for genetic cohesion among the populatio ...
Pre-Evolution Quiz
Pre-Evolution Quiz

... As a result of adaptive radiation. When species are widely separated geographically. When species have similar ecological niches. ...
Pre-Evolution Quiz (A) - Harvard Life Science Outreach Program
Pre-Evolution Quiz (A) - Harvard Life Science Outreach Program

... As a result of adaptive radiation. When species are widely separated geographically. When species have similar ecological niches. ...
A. Historical Context for Evolutionary Theory
A. Historical Context for Evolutionary Theory

... Later, Charles Lyell proposed a theory of uniformitarianism, that geological processes had not changed throughout Earth’s history. ...
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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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