Remember when we . . Students should be able to
... colored moths lost their camouflage as black soot covered the light colored lichen, making it easier for dark colored moths to survive, causing their population to be larger than the light colored moth. ...
... colored moths lost their camouflage as black soot covered the light colored lichen, making it easier for dark colored moths to survive, causing their population to be larger than the light colored moth. ...
Evolution Practice Questions
... D. A flock of migrating geese loses its way to its wintering grounds, leaving other geese without competition for resources and enabling those geese to produce more offspring. 8. What affect does natural selection have on the variation of a species? A. It increases it C. It has random effects on it ...
... D. A flock of migrating geese loses its way to its wintering grounds, leaving other geese without competition for resources and enabling those geese to produce more offspring. 8. What affect does natural selection have on the variation of a species? A. It increases it C. It has random effects on it ...
Teacher Materials - Maryland Virtual High School
... Aa mothlets: heterozygous moths that are also dark in color aa moths: homozygous recessive moths that are light in color Note: STELLA will not let you repeat variable names. Because STELLA is not case sensitive, it doesn’t distinguish between the names “aa moths” and “Aa moths,” so we have to vary t ...
... Aa mothlets: heterozygous moths that are also dark in color aa moths: homozygous recessive moths that are light in color Note: STELLA will not let you repeat variable names. Because STELLA is not case sensitive, it doesn’t distinguish between the names “aa moths” and “Aa moths,” so we have to vary t ...
Evolution Keystone Presentation Part 1
... These pigeons have all been bred by humans to have certain exaggerated characteristics. Darwin also realized that natural selection is basically the same process that humans have used for centuries in selective breeding of domesticated animals as well as ...
... These pigeons have all been bred by humans to have certain exaggerated characteristics. Darwin also realized that natural selection is basically the same process that humans have used for centuries in selective breeding of domesticated animals as well as ...
Evolution Webquest
... to another. Gene flow includes lots of different kinds of events, such as _______________ being blown to a new destination or people moving to new cities or countries. If ___________ are carried to a population where those genes previously did not ________________, _________________ can be a very im ...
... to another. Gene flow includes lots of different kinds of events, such as _______________ being blown to a new destination or people moving to new cities or countries. If ___________ are carried to a population where those genes previously did not ________________, _________________ can be a very im ...
Evolution Webquest
... to another. Gene flow includes lots of different kinds of events, such as _______________ being blown to a new destination or people moving to new cities or countries. If ___________ are carried to a population where those genes previously did not ________________, _________________ can be a very im ...
... to another. Gene flow includes lots of different kinds of events, such as _______________ being blown to a new destination or people moving to new cities or countries. If ___________ are carried to a population where those genes previously did not ________________, _________________ can be a very im ...
Evolution Cards - Nuffield Foundation
... Several people before Charles Darwin were considering the idea of evolution but Darwin (and Alfred Wallace) was the first to suggest a detailed way for evolution to take place; one which fitted all the evidence he and others had gathered. This was the theory of evolution by natural selection. Many p ...
... Several people before Charles Darwin were considering the idea of evolution but Darwin (and Alfred Wallace) was the first to suggest a detailed way for evolution to take place; one which fitted all the evidence he and others had gathered. This was the theory of evolution by natural selection. Many p ...
Teacher notes and student sheets
... Several people before Charles Darwin were considering the idea of evolution but Darwin (and Alfred Wallace) was the first to suggest a detailed way for evolution to take place; one which fitted all the evidence he and others had gathered. This was the theory of evolution by natural selection. Many p ...
... Several people before Charles Darwin were considering the idea of evolution but Darwin (and Alfred Wallace) was the first to suggest a detailed way for evolution to take place; one which fitted all the evidence he and others had gathered. This was the theory of evolution by natural selection. Many p ...
Name Period
... A characteristic which is influenced by genes and passed from parents to offspring is called a heritable trait. Fur color is a heritable trait for mice. In general, individuals with a heritable trait that increases fitness produce more offspring than individuals that do not have this trait. Because ...
... A characteristic which is influenced by genes and passed from parents to offspring is called a heritable trait. Fur color is a heritable trait for mice. In general, individuals with a heritable trait that increases fitness produce more offspring than individuals that do not have this trait. Because ...
Natural selection student guides
... population of organisms. If a population is divided, and the subpopulations remain isolated for a long period of time, then natural selection may increase and decrease the frequencies of different alleles in each subpopulation, causing the subpopulations to diverge from one another. If the genetic d ...
... population of organisms. If a population is divided, and the subpopulations remain isolated for a long period of time, then natural selection may increase and decrease the frequencies of different alleles in each subpopulation, causing the subpopulations to diverge from one another. If the genetic d ...
Directional Selection • For a population of giraffes, suppose we
... dominant allele (AA) will not suffer from sicklecell anemia, but will have vulnerability to malaria. An individual who is homozygous for the recessive allele (SS) will have resistance to malaria, but will suffer from sickle-cell anemia. The heterozygous individual (AS) has normal red blood cells and ...
... dominant allele (AA) will not suffer from sicklecell anemia, but will have vulnerability to malaria. An individual who is homozygous for the recessive allele (SS) will have resistance to malaria, but will suffer from sickle-cell anemia. The heterozygous individual (AS) has normal red blood cells and ...
Adaptations
... regulates salt and water. As its physiological problems change, it shifts hift from f one system t for f solving l i its it problems bl to t the th other. th They Th exhibit sensitivity, regulation, and homeostasis. ...
... regulates salt and water. As its physiological problems change, it shifts hift from f one system t for f solving l i its it problems bl to t the th other. th They Th exhibit sensitivity, regulation, and homeostasis. ...
Natural Selection
... Set up: Place the black paper in the center of your group. This represents a tree in a polluted environment. Empty all of the black and white circles from the Ziploc bag onto the black paper. The black circles represent the black version of the peppered moth, and the white circles represent the whit ...
... Set up: Place the black paper in the center of your group. This represents a tree in a polluted environment. Empty all of the black and white circles from the Ziploc bag onto the black paper. The black circles represent the black version of the peppered moth, and the white circles represent the whit ...
Natural Selection Student Handout
... Set up: Place the black paper in the center of your group. This represents a tree in a polluted environment. Empty all of the black and white circles from the Ziploc bag onto the black paper. The black circles represent the black version of the peppered moth, and the white circles represent the whit ...
... Set up: Place the black paper in the center of your group. This represents a tree in a polluted environment. Empty all of the black and white circles from the Ziploc bag onto the black paper. The black circles represent the black version of the peppered moth, and the white circles represent the whit ...
Evolution Open Ended Questions: Answer the following
... The light colored peppered moths were well camouflaged on the trees which also had lichens growing on them. When the Industrial Revolution took place, the pollution killed the lichens and also darkened the tree bark with soot from the pollution. Before the Industrial Revolution, dark colored peppere ...
... The light colored peppered moths were well camouflaged on the trees which also had lichens growing on them. When the Industrial Revolution took place, the pollution killed the lichens and also darkened the tree bark with soot from the pollution. Before the Industrial Revolution, dark colored peppere ...
Natural Selection Notes
... This allows them to survive and pass on these favorable genes – natural selection Over time, natural selection can result in a change in a population – evolution! ...
... This allows them to survive and pass on these favorable genes – natural selection Over time, natural selection can result in a change in a population – evolution! ...
The-four-factors
... of survival. In the lichen forest, the lighter moths blended in more giving them a higher chance of survival. 3.500 light colored moths and 500 dark colored moths are released into a polluted forest. After 2 days the moths were recaptured, make a prediction about the number of each type of moth that ...
... of survival. In the lichen forest, the lighter moths blended in more giving them a higher chance of survival. 3.500 light colored moths and 500 dark colored moths are released into a polluted forest. After 2 days the moths were recaptured, make a prediction about the number of each type of moth that ...
Genitcal Theory of Natural Selection
... How Strong is Natural Selection? -Peppered Moths used as example for very strong selection. -Kettlewell’s results- when moths were released in polluted area typical had lower survival rate. When released in unpolluted area typical had higher survival rate. -Well’s and Hooper claimed experiment and ...
... How Strong is Natural Selection? -Peppered Moths used as example for very strong selection. -Kettlewell’s results- when moths were released in polluted area typical had lower survival rate. When released in unpolluted area typical had higher survival rate. -Well’s and Hooper claimed experiment and ...
The peppered moth
... It has been shown experimentally (by Kettlewell) that in areas with black tree trunks, gray moths are much more likely to be eaten by birds than are black moths (presumably because gray moths are much easier for the birds to see.) In industrial areas, because black moths avoided being eaten by birds ...
... It has been shown experimentally (by Kettlewell) that in areas with black tree trunks, gray moths are much more likely to be eaten by birds than are black moths (presumably because gray moths are much easier for the birds to see.) In industrial areas, because black moths avoided being eaten by birds ...
No Slide Title - NVHSIntroBioPiper1
... PHENOTYPIC VARIATION What is the cause of Phenotypic Variation? 1. GENETIC MUTATIONS 2. CROSSING OVER (sexual reproduciton) ...
... PHENOTYPIC VARIATION What is the cause of Phenotypic Variation? 1. GENETIC MUTATIONS 2. CROSSING OVER (sexual reproduciton) ...
How Does Evolution Occur? - Downtown Magnets High School
... Peppered Moth Story: Natural Selection Example • Trees the moths lived on were whitish colored. • Predatory birds could only see dark moths to eat. Huge white moth pops. ...
... Peppered Moth Story: Natural Selection Example • Trees the moths lived on were whitish colored. • Predatory birds could only see dark moths to eat. Huge white moth pops. ...
Peppered Moth
... of facts to support the theory of evolution by natural selection. One of his difficulties in demonstrating the theory, however, was the lack of an example of evolution over a short period of time, which could be observed as it was taking place in nature. Although Darwin was unaware of it, remarkable ...
... of facts to support the theory of evolution by natural selection. One of his difficulties in demonstrating the theory, however, was the lack of an example of evolution over a short period of time, which could be observed as it was taking place in nature. Although Darwin was unaware of it, remarkable ...
Natural Selection Worksheet
... Peppered moths range in color from dark to light. The dark moths have the dominant gene for wing scale color and are either DD or Dd. The light-colored moths have the recessive genes and are dd. INSTRUCTIONS To see how peppered moths use camouflage to avoid bluejays… Type your name on this page, the ...
... Peppered moths range in color from dark to light. The dark moths have the dominant gene for wing scale color and are either DD or Dd. The light-colored moths have the recessive genes and are dd. INSTRUCTIONS To see how peppered moths use camouflage to avoid bluejays… Type your name on this page, the ...
Evolution Review
... The driving force behind evolution is _____________, or the study of inherited traits. All organisms look and ____________ in certain ways because of their genes. Individuals in the same species display different traits because of genetic _______________. Examples of this are that humans have differ ...
... The driving force behind evolution is _____________, or the study of inherited traits. All organisms look and ____________ in certain ways because of their genes. Individuals in the same species display different traits because of genetic _______________. Examples of this are that humans have differ ...
Peppered moth evolution
The evolution of the peppered moth is an evolutionary instance of colour variation in the moth population as a consequence of the Industrial Revolution. The concept refers to an increase in the number of dark-coloured moths due to industrial pollution, and a reciprocal decrease in the population in a clean environment. Hence, the phenomenon is called industrial melanism. It is the first recorded and experimented case of Charles Darwin's natural selection in action, and remains as a classic example in the teaching of evolution. Sewall Wright described it as ""the clearest case in which a conspicuous evolutionary process has actually been observed.""The dark-coloured or melanic moths (carbonaria variety) were not known prior to 1811. After field collection in 1848 from Manchester, an industrial city in England, the frequency of the variety was found to have increased drastically. By the end of the 19th century it almost completely outnumbered the original light-coloured type (typica variety). The evolutionary importance of the moth was only speculated upon during Darwin's lifetime. It was only 14 years after Darwin’s death, in 1896, that J.W. Tutt presented it as a case of natural selection.Bernard Kettlewell was the first to investigate the evolutionary mechanism behind peppered moth adaptation, between 1953 and 1956. He found that a light-coloured body was an effective camouflage in a clean environment, such as in Dorset, while the dark colour was beneficial in a polluted environment like in Birmingham. This selective survival was due to birds which easily caught dark moths on clean trees, and white moths on trees darkened with soot. The story, supported by Kettlewell's experiment, became an example of Darwinian evolution used in standard textbooks.However, failure to replicate the experiment and criticism of Kettlewell's methods by Theodore David Sargent in the late 1960s led to general scepticism. When Judith Hooper's Of Moths and Men was published in 2002, Kettlewell's story was more sternly attacked, accused of fraud, and became widely disregarded. The criticism became a major argument for anti-evolutionists. Michael Majerus was the principal defender. His seven-year experiment beginning in 2001, the most elaborate of its kind in population biology, the results of which were published posthumously in 2012, vindicated Kettlewells' work in great detail. This restored peppered moth evolution as ""the most direct evidence"", and ""one of the clearest and most easily understood examples of Darwinian evolution in action"".