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suited to the environment
suited to the environment

... enough to produce more offspring. For example, some may have different coloured fur or skin so that they are less easily seen. If these individuals mate with each other, they are likely to pass on the advantage to their offspring. Gradually more and more of that species would have the different colo ...
Chapter 13: How Populations Evolve
Chapter 13: How Populations Evolve

... Evolution by natural selection can be observed for organisms with a short generation time • e.g., 30 minutes for bacteria vs. ~20 years for humans **Populations evolve generation by generation, thus species with short generation times tend to evolve faster!** ...
PowerPoint - Home (www2)
PowerPoint - Home (www2)

... chances of survival and reproduction.  Those individuals who survive and reproduce pass along their genetic material (“survival of the fittest”).  The offspring are more likely to have the variation of the trait that allowed better survival & reproduction.  Natural selection—individuals with bene ...
Word Count: 1046 Questions on the origin of life and of the universe
Word Count: 1046 Questions on the origin of life and of the universe

... curiosity and imagination as soon as early man had time for activities other than survival. In 1859, Charles Darwin published the Origin of Species, and since then, people have debated between the creationism and evolutionism theories. The theory of evolution has been supported only through various ...
I. Biology and Society: Mosquitoes, Microbes, and Malaria 1. In the
I. Biology and Society: Mosquitoes, Microbes, and Malaria 1. In the

... 3. At the same time, naturalists were grappling with the interpretation of fossils, imprints or remains of organisms that lived in the past. 4. Lamarck and Evolutionary Adaptations 5. Naturalists compared fossil forms with living species and noted patterns of similarities and differences. 6. In the ...
2016 to 17 Evolution Questions ANSWER KEY
2016 to 17 Evolution Questions ANSWER KEY

... Male lions who do not inherit genes that help them to produce large, dark manes are less likely to breed. Explain the benefits to a female lion who instinctively selects a mate with a large dark mane. - Females pick mates on an instinctive preference, NO CREDIT for female “wants” to find a fit male ...
EvolutionUnit reader_From EOCT study guide
EvolutionUnit reader_From EOCT study guide

... natural selection not to change. So, in order for researchers to time recent evolutionary events, they must use “time clocks” that tick fairly quickly. But to estimate how long ago there was a shared ancestry, they must use clocks that tick very slowly. Speciation is the evolution of a new species ...
Nov19
Nov19

... "On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life" (1859) or "The Origin of Species" for short. After publication of Origin of Species, Darwin continued to write on botany, geology, and zoology until his death in 1882. He is burie ...
Study Guide for Exam III
Study Guide for Exam III

... Recall what is meant by: DNA replication, gene duplication (not the same thing!), gene recruitment, mutations (be able to recognize examples of deletions, duplications, substitutions) What is the significance of the citrate-feeding E. coli and the PCP-feeding Sphingobium bacteria we discussed in cla ...
Evolution and Biodiversity
Evolution and Biodiversity

...  Speciation – Extinction=Biodiversity  Humans major force in the premature extinction of species. Extinction rate increased by 100-1000 times the natural background rate.  As we grow in population over next 50 years, we are expected to take over more of the earth’s surface and productivity. This ...
PowerPoint Chp 1
PowerPoint Chp 1

... Individuals in a population vary in some heritable traits Some heritable traits are more adaptive under prevailing conditions Differences in heritable traits influence survival and reproduction of individuals Adaptive traits become more common in population ...
Sample student work
Sample student work

... This student was responding to the question: “Does evolution occur in steps?” This student work was ultimately uploaded to create a wiki, which was shared with and critiqued by all class members. Claim Evolution occurs in four simple steps. It begins with a genetic variation; the second step is over ...
ESC 102 Quiz Ch 7 Name___________________________ 1.
ESC 102 Quiz Ch 7 Name___________________________ 1.

... 5._____ The theory of evolution is not well-supported by the fossil record. a. true b. false 6._____ The theory of evolution is well-supported by genetic studies and nested similarities among organisms. a. true b. false 7._____ Charles Darwin recklessly published his evolutionary hypothesis without ...
Document
Document

... • Darwin didn’t know about genes • He DID observe traits being passed to offspring • He knew about Artificial Selection – nature provides variation, humans select variations they find useful • Dogs, pigeons, crops, horses, cows ...
Evolution Tutorial
Evolution Tutorial

... 9. Gene frequency refers to how frequent a ___________ or ___________ is in a population. 10. Gene frequency can change because of __________. When the gene ____________ changes the population is ___________________. 11. Gene flow occurs when genes are able to move from _____________________________ ...
1. Which statement does not reflect Darwin`s theory of evolution by
1. Which statement does not reflect Darwin`s theory of evolution by

... 23. The term founder effect is defined as: a. the establishment of a population in a new region b. a rapid population decrease c. the movement of alleles from one population to another d. any change in gene or allele frequencies in a population e. any random change in gene or allele frequencies in a ...
Natural Selection - Plain Local Schools
Natural Selection - Plain Local Schools

... that proposed Earth’s features today could be explained by geological processes B. From this Darwin made two conclusions 1. The Earth must be very old ...
Species Interactions and Succession â
Species Interactions and Succession â

... reproduction of individuals in the same population based on genetic differences among them. ...
Variation and Natural Selection
Variation and Natural Selection

... are caused by genes Organisms with the best adaptations have the “best” genes and highest fitness These organisms survive and reproduce more, passing on their genes, and changing the relative frequency of genes in the gene pool of the next generation (“good” genes appear more frequently) ...
Geographic Isolation- when a physical barrier divides a population
Geographic Isolation- when a physical barrier divides a population

... followed by brief periods of drastic change. *both theories are accepted and apply to different species at different times ...
Evolution 2
Evolution 2

... population diverge so much that the two variants can no longer interbreed. Polyploidy—A condition in which an individual has more than the normal number of sets of chromosomes (more common in plants); these will not be able to mate with the original organisms. ...
Mechanisms for Evolution
Mechanisms for Evolution

... adaptation is an physical structure, physiological process or behavioral trait of an organism that has evolved over a period of time by the process of natural selection.  Adaptations increase the reproductive success of the organism. ...
Chapter 16: Evolutionary Theory Developing a Theory A Theory to
Chapter 16: Evolutionary Theory Developing a Theory A Theory to

... 3. Who is the “father” of evolution? Charles Darwin 1809 – 1882 B. Darwin’s Ideas from Experience 1. How did Darwin gather his information which enabled him to develop his theory of natural selection? While on his voyage he made observations about different plants & animals. Also collected plants & ...
Section 1 Change over Time
Section 1 Change over Time

... • Over generations, two separated groups of a population may become very different through natural selection due to the division. Even if a geological barrier is removed and the groups are reunited, they may no longer be able to interbreed. If they cannot interbreed, the two groups are no longer th ...
19.2 – Developing the Theory of Evolution
19.2 – Developing the Theory of Evolution

... characteristics acquired during an organism’s lifetime could be passed on to its offspring ...
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Saltation (biology)

In biology, saltation (from Latin, saltus, ""leap"") is a sudden change from one generation to the next, that is large, or very large, in comparison with the usual variation of an organism. The term is used for nongradual changes (especially single-step speciation) that are atypical of, or violate gradualism - involved in modern evolutionary theory.
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