CI440 Teaching Lesson Demo
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The document provides instructions for a lesson on natural selection and evolution for a 9th grade biology class, including unscrambling terms, matching definitions, and predicting the lesson topic. Students will define key concepts, discuss examples of natural selection, and simulate the peppered moth example of natural selection. Their understanding will be assessed through a natural selection jeopardy game.
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11u bio 09
This document discusses the four types of natural selection: directional selection which favors an extreme trait, stabilizing selection which favors average traits, disruptive selection which favors extreme traits over average traits, and sexual selection which favors traits that increase reproductive success such as traits used in mate choice or competition. Examples are given for each type of selection.
Modern concept of natural selection
This document discusses the concept of natural selection and provides examples. It describes three patterns of natural selection: directional selection which favors advantageous traits, stabilizing selection which reduces variability, and disruptive selection which favors extreme traits. Examples provided include industrial melanism in moths due to pollution, control of Australian rabbits through myxomatosis virus, and selective breeding experiments increasing traits like body weight and disease resistance in salmon.
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The document summarizes key concepts in evolution including Darwin's theory of natural selection. It discusses early theories of evolution from Jean-Baptiste Lamarck and how Darwin's voyage on the HMS Beagle and observations of species on the Galapagos Islands led him to propose natural selection in his 1859 book On the Origin of Species. Natural selection proposes that individuals with favorable traits are more likely to reproduce and leave more offspring, gradually changing the traits of a population over generations. The document also outlines evidence of evolution such as fossils, taxonomy, and molecular biology as well as mechanisms of microevolution like genetic drift and gene flow that can lead to speciation, the evolution of new species.
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This document outlines an educational unit plan focused on evolution through place-based learning at Creamer's Field Migratory Bird Refuge in Alaska. The unit includes a nature walk and inquiry, learning about the history of Creamer's Field, comparing Darwin and Lamarck's theories of evolution, studying the tree of life through species identification, and having students participate in a debate about evolved traits of local species.
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The document provides instructions for playing a Kahoot! warm-up game. It instructs students to go to kahoot.it on their phones, wait for the teacher to share the game pin, and enter a name. It then recaps the main ideas of natural selection, including evolution over time, competition for resources, heritable variations, and changes in population genetics. Individuals do not evolve directly, only populations evolve.
Natural selection
This document provides instructions and content for a science journal assignment on natural selection. It includes:
- Definitions of key terms like organism, population, and natural selection.
- An example of natural selection in peppered moths, explaining how light-colored moths had an advantage on light-colored trees but dark moths had an advantage when pollution made the trees dark.
- Processing questions to illustrate the steps of natural selection using moths or other examples.
- Reminders to use already filled notes and that there will be a retest during lunch for those who failed a previous test.
Modern concept of natural selection2
Natural selection leads to the evolution of organisms over time through differential survival and reproduction based on heritable traits. There are three main types of selection: directional selection favors one trait extreme, stabilizing selection favors intermediate traits, and disruptive selection favors opposite trait extremes. Examples of natural selection in action include the evolution of melanism in moths due to pollution and the evolution of myxoma virus resistance in rabbits in Australia. Laboratory studies also demonstrate the effects of selection, such as increased growth in selectively bred salmon. Natural selection can result in radiation, convergence, regression, extinction, and coevolution between interacting species.
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This document discusses the four types of natural selection: directional selection which favors an extreme trait, stabilizing selection which favors average traits, disruptive selection which favors extreme traits over average traits, and sexual selection which favors traits that increase reproductive success such as traits used in mate choice or competition. Examples are given for each type of selection.
Modern concept of natural selection
This document discusses the concept of natural selection and provides examples. It describes three patterns of natural selection: directional selection which favors advantageous traits, stabilizing selection which reduces variability, and disruptive selection which favors extreme traits. Examples provided include industrial melanism in moths due to pollution, control of Australian rabbits through myxomatosis virus, and selective breeding experiments increasing traits like body weight and disease resistance in salmon.
Darwinism and natural selection
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1. Directional Selection
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The document summarizes key concepts in evolution including Darwin's theory of natural selection. It discusses early theories of evolution from Jean-Baptiste Lamarck and how Darwin's voyage on the HMS Beagle and observations of species on the Galapagos Islands led him to propose natural selection in his 1859 book On the Origin of Species. Natural selection proposes that individuals with favorable traits are more likely to reproduce and leave more offspring, gradually changing the traits of a population over generations. The document also outlines evidence of evolution such as fossils, taxonomy, and molecular biology as well as mechanisms of microevolution like genetic drift and gene flow that can lead to speciation, the evolution of new species.
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This document outlines an educational unit plan focused on evolution through place-based learning at Creamer's Field Migratory Bird Refuge in Alaska. The unit includes a nature walk and inquiry, learning about the history of Creamer's Field, comparing Darwin and Lamarck's theories of evolution, studying the tree of life through species identification, and having students participate in a debate about evolved traits of local species.
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The document provides instructions for playing a Kahoot! warm-up game. It instructs students to go to kahoot.it on their phones, wait for the teacher to share the game pin, and enter a name. It then recaps the main ideas of natural selection, including evolution over time, competition for resources, heritable variations, and changes in population genetics. Individuals do not evolve directly, only populations evolve.
Natural selection
This document provides instructions and content for a science journal assignment on natural selection. It includes:
- Definitions of key terms like organism, population, and natural selection.
- An example of natural selection in peppered moths, explaining how light-colored moths had an advantage on light-colored trees but dark moths had an advantage when pollution made the trees dark.
- Processing questions to illustrate the steps of natural selection using moths or other examples.
- Reminders to use already filled notes and that there will be a retest during lunch for those who failed a previous test.
Modern concept of natural selection2
Natural selection leads to the evolution of organisms over time through differential survival and reproduction based on heritable traits. There are three main types of selection: directional selection favors one trait extreme, stabilizing selection favors intermediate traits, and disruptive selection favors opposite trait extremes. Examples of natural selection in action include the evolution of melanism in moths due to pollution and the evolution of myxoma virus resistance in rabbits in Australia. Laboratory studies also demonstrate the effects of selection, such as increased growth in selectively bred salmon. Natural selection can result in radiation, convergence, regression, extinction, and coevolution between interacting species.
Darwins Finches
Darwin discovered 13 species of finches on the Galapagos Islands that all descended from a common ancestor. The finches have adapted to their environments by developing differences in beak type, color, and size to eat various foods like seeds, insects, or use tools. Peter and Rosemary Grant studied the finches to show there is enough natural variation within each species for natural selection to lead to changes over time, such as documenting changes in finch beak and body traits during drought.
Classification of cat
1. The domestic cat is a small carnivorous mammal that is found globally and primarily lives in areas of human habitation.
2. Domestic cats come in over 100 breeds but generally have a similar body shape, weighing between 4-5 kg and measuring around 76 cm long.
3. Cats are polygynandrous, meaning both males and females can mate with multiple partners, and gestation typically lasts 60-67 days resulting in litters of kittens that are dependent on their mother for care.
selection in nature
This document discusses different types of natural selection and their effects on populations and species evolution over time. It describes directional selection as favoring one extreme trait, stabilizing selection as favoring intermediate traits and eliminating extremes, and disruptive selection as favoring opposite trait extremes. Natural selection can lead to adaptation, radiation of new species from a single ancestor, regression of unnecessary traits, convergence of unrelated species, coevolution between interacting species, and extinction of non-adapted species. Sexual selection also influences evolution by favoring traits that increase mating success even if they reduce survival.
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Macroevolution refers to large evolutionary changes that occur at or above the species level, in contrast to microevolution which involves smaller changes within a species. Adaptive radiation is the evolution of many descendant species from a single ancestor, with each species adapted to a different ecological niche. A classic example is Darwin's finches, which evolved from a common ancestor into 14 species with varying beak sizes and shapes adapted to different food sources. Orthogenesis proposed that evolutionary changes occur in a straight line, while allometry describes how body part size relates to overall body size and its evolution.
1. Natural Selection
The document summarizes key aspects of Charles Darwin's theory of evolution by natural selection. It describes how Darwin observed variation among finch species on the Galapagos Islands and concluded that small populations of an original finch species from South America adapted over generations to different food sources and environments on each island, leading to the emergence of new species through natural selection. The document also contrasts Darwin's theory with Lamarck's idea of the inheritance of acquired characteristics, stating that Darwin believed advantageous traits were passed on to offspring through inheritance rather than acquisition during an organism's lifetime.
Modern concept of natural selection
Natural selection can lead to directional, stabilizing, or disruptive selection depending on the relationship between phenotypes and fitness. Directional selection favors extreme variants, stabilizing selection favors intermediate phenotypes, and disruptive selection favors opposite extremes. Examples of natural selection include industrial melanism in moths due to pollution and myxomatosis virus controlling rabbit populations in Australia. Natural selection can also lead to radiation, where many new species evolve from a common ancestor, as well as convergence of unrelated species, regression of traits, and extinction of non-adapted species.
Types of selection
There are three main types of natural selection: stabilizing selection, directional selection, and disruptive selection. Stabilizing selection favors average traits so that medium-sized or medium-weight individuals are most likely to survive. Directional selection favors individuals with one extreme trait, like long-necked giraffes or large horses. Disruptive selection favors individuals with opposite extreme traits, so average or intermediate individuals die out while the extremes survive, like with camouflaged light or dark rabbits.
Principles of evolution
Charles Darwin developed the theory of evolution by natural selection after observing finches with different beak structures on the Galapagos Islands. His 1859 book On the Origin of Species introduced the idea that species change over time through natural selection, where organisms with traits better suited to their environment are more likely to survive and pass on those traits, leading to new species. Darwin provided evidence that all life on Earth shares common ancestry, challenging the prevailing view that species were fixed and separately created. His theory of evolution by natural selection explained how the 1.5 million species alive today could have evolved from common ancestors through gradual genetic changes over many generations.
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This document discusses Charles Darwin's theory of natural selection and evolution. It defines key terms like variation, reproduction, competition, and fitness. It explains that Darwin observed variation among finches in the Galapagos Islands which led him to propose that natural selection causes evolution as organisms compete for limited resources and those with traits best suited to the environment have higher fitness and are more likely to survive and reproduce, passing on their genes. Over time this leads to evolution of species adapted to their environments.
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Darwin's discovery of natural selection is considered a scientific theory rather than a fact or hypothesis. A theory in science is an explanation or model supported by evidence from observation and experimentation. The Theory of Natural Selection proposes that species evolve over generations as favorable inherited traits become more common through the process of survival of the fittest. Darwin initially proposed natural selection as a hypothesis, or educated guess, but it is now accepted as a scientific theory that best explains how evolution by natural selection occurs.
Speciation
This document discusses mechanisms of reproductive isolation that can lead to the formation of new species. It describes two types of isolating mechanisms - prezygotic, which prevent interspecies mating and fertilization, and postzygotic, which prevent hybrid zygotes from developing into healthy adults. Examples of prezygotic mechanisms include ecological, temporal, behavioral, mechanical, and gametic isolation. Postzygotic mechanisms include zygote mortality, hybrid inviability, and hybrid infertility.
Natural Selection
The document discusses Charles Darwin and the theory of evolution by natural selection. It outlines Darwin's observations on the Galapagos Islands that led him to propose evolution, with individuals exhibiting favorable traits being more likely to survive and pass those traits to offspring. The theory of natural selection provided a mechanism for evolution to operate over time and change populations. The document also reviews evidence that supports the theory of evolution, including fossils, biogeography, and comparative embryology.
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The document provides a history of evolutionary thought. It discusses key figures and ideas that contributed to the development of the theory of evolution by natural selection, including:
1) Before 1850, most people believed that species were unchanging and each was created for its environment. Charles Darwin began to doubt this after observing variation between organisms on his voyage.
2) Darwin was influenced by James Hutton and Charles Lyell's findings that the earth changes slowly over time, and by Georges Cuvier's discovery that species can go extinct.
3) Alfred Russell Wallace independently conceived of natural selection. Darwin published On the Origin of Species in 1859 introducing his theory of evolution by natural selection.
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This document provides an overview and teaching guide for the NOVA program "Dogs and More Dogs". The program discusses:
- The evolution of dogs from wolves and the diversity of dog breeds today.
- Two competing theories for how dogs were domesticated from wolves.
- Experiments showing how selection for tameness in foxes produced dog-like traits.
- How humans used food rewards to breed dogs for specific behaviors over thousands of years.
- Genetic factors contributing to traits unique to dogs and disease issues from extensive inbreeding.
The teaching guide provides background information, discussion questions, and a classroom activity to simulate how selective pressures can influence evolution using a card game representing wolf temperament genes
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This document provides an overview of evolution and Charles Darwin's theory of natural selection. It discusses how evolution is both a fact, as organisms have changed over time as seen in the fossil record, and a theory explaining the mechanism of change. Darwin's observations of finches and tortoises on the Galapagos Islands led him to understand that organisms adapt to their environments over generations through natural selection, in which heritable traits that increase survival are passed on. His theory was supported by examples like the adaptation of peppered moths during the Industrial Revolution.
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2) Natural selection and adaptation are key mechanisms of evolution, where traits that help organisms survive and reproduce are passed on while others die out.
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Darwin discovered 13 species of finches on the Galapagos Islands that all descended from a common ancestor. The finches have adapted to their environments by developing differences in beak type, color, and size to eat various foods like seeds, insects, or use tools. Peter and Rosemary Grant studied the finches to show there is enough natural variation within each species for natural selection to lead to changes over time, such as documenting changes in finch beak and body traits during drought.
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1. The domestic cat is a small carnivorous mammal that is found globally and primarily lives in areas of human habitation.
2. Domestic cats come in over 100 breeds but generally have a similar body shape, weighing between 4-5 kg and measuring around 76 cm long.
3. Cats are polygynandrous, meaning both males and females can mate with multiple partners, and gestation typically lasts 60-67 days resulting in litters of kittens that are dependent on their mother for care.
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This document discusses different types of natural selection and their effects on populations and species evolution over time. It describes directional selection as favoring one extreme trait, stabilizing selection as favoring intermediate traits and eliminating extremes, and disruptive selection as favoring opposite trait extremes. Natural selection can lead to adaptation, radiation of new species from a single ancestor, regression of unnecessary traits, convergence of unrelated species, coevolution between interacting species, and extinction of non-adapted species. Sexual selection also influences evolution by favoring traits that increase mating success even if they reduce survival.
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1. Natural Selection
The document summarizes key aspects of Charles Darwin's theory of evolution by natural selection. It describes how Darwin observed variation among finch species on the Galapagos Islands and concluded that small populations of an original finch species from South America adapted over generations to different food sources and environments on each island, leading to the emergence of new species through natural selection. The document also contrasts Darwin's theory with Lamarck's idea of the inheritance of acquired characteristics, stating that Darwin believed advantageous traits were passed on to offspring through inheritance rather than acquisition during an organism's lifetime.
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Natural selection can lead to directional, stabilizing, or disruptive selection depending on the relationship between phenotypes and fitness. Directional selection favors extreme variants, stabilizing selection favors intermediate phenotypes, and disruptive selection favors opposite extremes. Examples of natural selection include industrial melanism in moths due to pollution and myxomatosis virus controlling rabbit populations in Australia. Natural selection can also lead to radiation, where many new species evolve from a common ancestor, as well as convergence of unrelated species, regression of traits, and extinction of non-adapted species.
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There are three main types of natural selection: stabilizing selection, directional selection, and disruptive selection. Stabilizing selection favors average traits so that medium-sized or medium-weight individuals are most likely to survive. Directional selection favors individuals with one extreme trait, like long-necked giraffes or large horses. Disruptive selection favors individuals with opposite extreme traits, so average or intermediate individuals die out while the extremes survive, like with camouflaged light or dark rabbits.
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Charles Darwin developed the theory of evolution by natural selection after observing finches with different beak structures on the Galapagos Islands. His 1859 book On the Origin of Species introduced the idea that species change over time through natural selection, where organisms with traits better suited to their environment are more likely to survive and pass on those traits, leading to new species. Darwin provided evidence that all life on Earth shares common ancestry, challenging the prevailing view that species were fixed and separately created. His theory of evolution by natural selection explained how the 1.5 million species alive today could have evolved from common ancestors through gradual genetic changes over many generations.
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This document discusses Charles Darwin's theory of natural selection and evolution. It defines key terms like variation, reproduction, competition, and fitness. It explains that Darwin observed variation among finches in the Galapagos Islands which led him to propose that natural selection causes evolution as organisms compete for limited resources and those with traits best suited to the environment have higher fitness and are more likely to survive and reproduce, passing on their genes. Over time this leads to evolution of species adapted to their environments.
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Darwin's discovery of natural selection is considered a scientific theory rather than a fact or hypothesis. A theory in science is an explanation or model supported by evidence from observation and experimentation. The Theory of Natural Selection proposes that species evolve over generations as favorable inherited traits become more common through the process of survival of the fittest. Darwin initially proposed natural selection as a hypothesis, or educated guess, but it is now accepted as a scientific theory that best explains how evolution by natural selection occurs.
Speciation
This document discusses mechanisms of reproductive isolation that can lead to the formation of new species. It describes two types of isolating mechanisms - prezygotic, which prevent interspecies mating and fertilization, and postzygotic, which prevent hybrid zygotes from developing into healthy adults. Examples of prezygotic mechanisms include ecological, temporal, behavioral, mechanical, and gametic isolation. Postzygotic mechanisms include zygote mortality, hybrid inviability, and hybrid infertility.
Natural Selection
The document discusses Charles Darwin and the theory of evolution by natural selection. It outlines Darwin's observations on the Galapagos Islands that led him to propose evolution, with individuals exhibiting favorable traits being more likely to survive and pass those traits to offspring. The theory of natural selection provided a mechanism for evolution to operate over time and change populations. The document also reviews evidence that supports the theory of evolution, including fossils, biogeography, and comparative embryology.
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The document provides a history of evolutionary thought. It discusses key figures and ideas that contributed to the development of the theory of evolution by natural selection, including:
1) Before 1850, most people believed that species were unchanging and each was created for its environment. Charles Darwin began to doubt this after observing variation between organisms on his voyage.
2) Darwin was influenced by James Hutton and Charles Lyell's findings that the earth changes slowly over time, and by Georges Cuvier's discovery that species can go extinct.
3) Alfred Russell Wallace independently conceived of natural selection. Darwin published On the Origin of Species in 1859 introducing his theory of evolution by natural selection.
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This document provides an overview and teaching guide for the NOVA program "Dogs and More Dogs". The program discusses:
- The evolution of dogs from wolves and the diversity of dog breeds today.
- Two competing theories for how dogs were domesticated from wolves.
- Experiments showing how selection for tameness in foxes produced dog-like traits.
- How humans used food rewards to breed dogs for specific behaviors over thousands of years.
- Genetic factors contributing to traits unique to dogs and disease issues from extensive inbreeding.
The teaching guide provides background information, discussion questions, and a classroom activity to simulate how selective pressures can influence evolution using a card game representing wolf temperament genes
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This document provides an overview of evolution and Charles Darwin's theory of natural selection. It discusses how evolution is both a fact, as organisms have changed over time as seen in the fossil record, and a theory explaining the mechanism of change. Darwin's observations of finches and tortoises on the Galapagos Islands led him to understand that organisms adapt to their environments over generations through natural selection, in which heritable traits that increase survival are passed on. His theory was supported by examples like the adaptation of peppered moths during the Industrial Revolution.
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Evolution for kids
1) Evolution is the process of change over many generations where organisms become better suited to their environment or more likely to die out.
2) Natural selection and adaptation are key mechanisms of evolution, where traits that help organisms survive and reproduce are passed on while others die out.
3) Charles Darwin first developed the theory of evolution to explain how organisms change over time through natural selection and adaptation.
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С помощью крауд-маркетинга ваш бренд станут узнавать, вы улучшите репутацию компании и привлечете целевой трафик на свой сайт. Кроме того, это безопасный способ получить естественные ссылки на свой ресурс.
Команда 1PS.RU не пишет механические отзывы о фирмах. Перед началом работы специалисты рассматривают компанию с точки зрения клиента, вникают в проблему и решают ее, выступая как ваша служба поддержки.
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4. The modern synthesis combines Darwin's natural selection with genetics, explaining evolution as gradual changes in populations through natural selection and accumulation of small genetic
Science 10 quarter 3.... Biodiversity.ppt
This document discusses evidence for evolution from fossil records, comparative anatomy, and embryonic development. It provides examples of fossils and their importance in studying evolution and environments. Comparative anatomy examines homologous and analogous structures. Embryonic development shows close species have similar early development. Theories of evolution from Jean Baptiste Lamarck and Charles Darwin are outlined, including natural selection and its role in evolution.
Natural selection
Darwin explored ideas about evolution through natural selection. His observations of finches in the Galapagos led him to predict that one species can evolve into another through natural selection. Natural selection is the process by which organisms with traits best suited to their environment survive and reproduce, passing on those favorable traits. Darwin proposed that small, inherited variations combined with differential reproductive success could result in the emergence of new species over generations.
3103 dogs
The NOVA program discusses how dogs evolved from wolves through two competing theories:
1) Wolves were adopted by Stone Age humans and selectively bred for tameness. 2) Wolves essentially domesticated themselves by foraging near human dumps, where tameness was advantageous. The program explores how traits like tails and ears differ from wolves, considers experiments showing how selection for tameness produced dog-like traits, and proposes theories on how diversity and adaptation abilities arose in dogs. It also reviews problems with genetic diseases in purebred dogs.
natural_sel.pptx
The document provides instructions for folding a graphic organizer to explore Darwin and his ideas of evolution. It includes steps to fold the organizer along center and dotted lines, cut between boxes, and glue a section to the back page so the tabs can fold open. The organizer then prompts the user to think about questions related to Darwin such as what led to the diversity of species and what causes one species to turn into another. It also provides information about natural selection and its role in the preservation of favorable adaptations that allow for increased survival and reproduction.
The-TIES-Middle-School-Evolution-Presentation-1-1.pptx
1) Evolution is the scientific theory that organisms are related by descent from common ancestors and that biological traits can change over generations through natural selection or genetic drift.
2) Evidence for evolution comes from multiple scientific disciplines including fossils, biogeography, embryology, and genetics. Comparisons of DNA, protein sequences, and anatomical structures among different species provide overwhelming support for the theory of evolution.
3) Natural selection is the primary mechanism of evolution. It occurs when heritable traits increase an organism's ability to survive and reproduce in its environment. Over generations, organisms best adapted to their environment will survive and pass on their favorable traits.
U6 L1 Theory of Evolution by Natural Selection
This document outlines Charles Darwin's theory of evolution by natural selection. It discusses how Darwin was influenced by his observations on a voyage, including different finch species on the Galapagos Islands. Darwin proposed that organisms vary in traits, some traits help organisms survive and reproduce more successfully, and these traits become more common over generations through natural selection, resulting in evolution of species over time as they adapt to their environments.
Evolution
This document discusses several key concepts in evolution and phylogenetics. It begins by defining species as a group of potentially interbreeding organisms that produce fertile offspring regularly in nature. It then discusses prezygotic and postzygotic reproductive barriers that can lead to the formation of new species. The document also covers forces that cause evolution such as natural selection, mutation, gene flow, genetic drift, and non-random mating. It provides examples of phylogenetic trees and cladograms and discusses important terms used to describe evolutionary relationships and read phylogenetic trees.
Chapter 16 & 17 Evolution of Populations and The History of Life
This document provides an overview of chapters 16 & 17 which cover the evolution of populations, the history of life, and key figures and concepts in evolutionary theory. It discusses how genes make evolution possible through genetic variation from mutations and gene recombination. Natural selection and genetic drift are described as causes of a population's gene pool changing over time, which can lead to the formation of new species through reproductive isolation. Fossils are examined as evidence for evolution and mass extinctions. Patterns in the fossil record show most species have become extinct, fossils are found in a particular order, and organisms have changed over time. Evolution occurs through both gradualism and punctuated equilibrium.
What are the 4 observations and 3 conclusions that Darwin presented .pdf
What are the 4 observations and 3 conclusions that Darwin presented in his theory of evolution
by natural selection? List 2 differences between natural selection and evolution.
Solution
Darwin\'s theory of evolution by natural selection included 4 observations:-
1.Due to lack of food and other resources many of the offsprings donot survive.
2.Population are capable of producing more offspring than the environment can support.
3.Members of population of the same species vary in their traits.
4.Traits can be inherited or passed from parents to offspring.
The moths are one species.But there are different colours of moths in our environment.The black
moth gives birth to the black one and the white gives to the white one.
The 3 conclusions:-
1.Natural selection is differential success in reproduction.
2.Natural selections occurs through an interaction between the environment and the variability
inherent among the individual organisms making up a population.
3.The product of natural selection in the adaption of population of organisms to their
environments.
The 2 differences between natural selection and evolution are:-
1.Evolution is the gradual changes that a population undergoes over time while natural selection
is the idea that oraganisms with certain traits will naturally have more reproductive success than
organisms with other traits have.
2.Evolution changes as the properties of ancestors are carried over to their offspring.But in
natural selection it goes under a selective process which explores a wide range of variations..
2 Biological Change.ppt
The document discusses several key topics related to evolution:
1. It describes common descent and provides evidence from DNA, RNA, amino acid sequences, and fossils.
2. It discusses Charles Darwin's contributions including his voyage on the HMS Beagle and publishing On the Origin of Species in 1859 introducing natural selection.
3. It provides examples of adaptations through structures like camouflage and mimicry as well as physiological adaptations in bacteria that provide evidence of evolution.
APES Ch. 4, part 1
The document provides an overview of topics and activities for a unit on biodiversity and evolution. It discusses the importance of biodiversity, including species, genetic, and ecosystem diversity. It introduces key concepts such as evolution by natural selection and plate tectonics changing the environment and influencing the evolution of species over time.
Chapter 18- Classification of Life
- The document discusses the evolution of biological classification systems from Linnaeus's two-kingdom system to the modern three-domain system. It describes the levels of taxonomy from smallest to largest and characteristics used to classify organisms, including evolutionary relationships revealed by DNA evidence. The three domains are Bacteria, Archaea, and Eukarya, with Eukarya containing the kingdoms Protista, Fungi, Plantae, and Animalia. Classification systems continue adapting to new genetic and molecular evidence.
[Bio1] ch 1 evolution the themes of biology and scientific inquiry
1. The document summarizes key themes and theories of biology presented in a lecture, including the diversity of life, cellular organization, properties of life, energy flow, homeostasis, classification, levels of organization, and major theories of biology such as cell theory, gene theory, heredity, and evolution.
2. It discusses how evolution occurs through natural selection, where traits that increase survival and reproduction are passed on, using examples like peppered moths adapting to environmental changes.
3. The gene theory holds that DNA contains genes which code for traits and are passed from parents to offspring, though gene expression can produce different tissues.
ArtificialSelection.ppt
artificial selection, also called "selective breeding”, is where humans select for desirable traits in agricultural products or animals, rather than leaving the species to evolve and change gradually without human interference, like in natural selection.
Introduction to biological oceanography notes
This document provides an introduction to key concepts in biological oceanography, including evolution, causes of evolution, and evidence of evolution. It defines evolution as change over time that occurs between species through processes like mutation, genetic drift, gene flow, natural selection, and non-random mating. The document also discusses concepts like overproduction, competition, genetic variation, adaptation, natural selection, speciation, classification, and the criteria used to place organisms into kingdoms.
Evolution and Biodiversity 2016
This document summarizes key concepts related to evolution and biodiversity. It discusses evidence for evolution such as the fossil record and homologous/analogous structures. It also describes Charles Darwin's theory of evolution by natural selection, focusing on how natural selection acts on phenotypic variation in populations to change the gene pool over generations. Finally, it discusses modern classification systems and how cladistics is used to construct phylogenies based on shared derived characteristics.
Chapter1 biology+and+the+tree+of+life-1
All living organisms share five fundamental characteristics: utilizing energy, being cellular, processing information, replicating, and evolving. The cell theory and the theory of evolution by natural selection form the framework of modern biology. A phylogenetic tree graphically represents evolutionary relationships among species based on their genetic similarities and differences.
29.1 changes in living things
1. Adaptations help organisms survive in their environment through natural selection and mutations.
2. Over time, if groups become separated by a barrier, they can evolve different traits and become new species unable to interbreed.
3. Primates evolved from mammal ancestors and humans diverged from primate ancestors around 3 million years ago, with several early human species becoming extinct except for Homo sapiens.
Summary of Topic 4.1 - biodiversity in ecosystems
1. Biodiversity refers to the variety of species, habitats, and genetic diversity present in an ecosystem. Species diversity is the number of species, habitat diversity is the variety of habitats, and genetic diversity is the genetic variation within a species.
2. Plate tectonics, natural selection, and reproductive isolation influence biodiversity. Plate tectonics causes land masses to move over millions of years, isolating populations and allowing new species to form through allopatric speciation. Natural selection leads to evolution as individuals with traits better suited to the environment are more likely to survive and pass on their genes.
3. Ecosystem stability depends on resilience, diversity, and inertia. More complex ecosystems with high
Similar to CI440 Teaching Lesson Demo (20)
The-TIES-Middle-School-Evolution-Presentation-1-1.pptx
The-TIES-Middle-School-Evolution-Presentation-1-1.pptx
Chapter 16 & 17 Evolution of Populations and The History of Life
Chapter 16 & 17 Evolution of Populations and The History of Life
What are the 4 observations and 3 conclusions that Darwin presented .pdf
What are the 4 observations and 3 conclusions that Darwin presented .pdf
[Bio1] ch 1 evolution the themes of biology and scientific inquiry
[Bio1] ch 1 evolution the themes of biology and scientific inquiry
CI440 Teaching Lesson Demo
- 1. UNSCRAMBLE, DEFINE, & PREDICT NATURAL SELECTION WHEEL OF FORTUNE & JEOPARDY Unscramble these terms & match them with the correct definition, finally predict our lesson today with a question what is, also show what your group wagered to win ex: free period, no final exam, or 50 bonus points 1. pnidotaA 2. Trtia theiHrebl 3. tVraianoi 4. Steenlcno aaurNtl 5. teFsins a.) a change or the process of change by which an organism or species becomes suited to its environment. Ex: plants, animals, & organisms. b.) changes in the DNA sequences. Ex: hair color , skin color, blood group, finger prints, and sex. c.) inherited characteristic that increases chances of survival. Ex. d.) ability to survive & reproduce in a specific environment. Ex. Rat snakes, pepper moth, bacteria or giraffes. e.) many variations in attributes are transmissible—the characteristics are passed from patrimonial to offspring through DNA
- 2. WHAT’S YOUR PREDICTION? • Have we aroused your curiosity? • Are you interested to predict or discover the topic of our lesson? • What are your anxieties about learning today? • What emotions have we aroused? • What are we going to learn about today? Make your prediction!!!! • Let’s start learning!!!!
- 3. Holly Owens & Oliver Washington Jr.
- 4. • Demographics: 9th grade Biology class at Edwardsville H.S. • Objectives: Students will be able to cite, define, and construct key practical applications, concepts, examples and summaries for natural selection and the evidence of evolution. • Lesson Strategies: Defining, discussing, connecting, and simulating to understand key vocabulary terms • Demonstrate and connect the four conditions of natural selection needed for evolution to occur through a pepper moth simulation-Group collaboration work 3x4 or 4x3 groups • Assessment: Natural Selection Jeopardy Game will access you post knowledge of Natural Selection & the evidence of Evolution- Groups/Teams of 3x4 or 4x3
- 5. • 1)-Adaption-a change or the process of change by which an organism or species becomes suited to its environment-plants, animals, owls, cheetahs, insects, and kangaroos • 2)-Variation- changes in the DNA sequences—hair color, skin color, blood group, finger prints, and sex • 3)-Natural Selection-ability to survive & reproduce in a specific environment--The peppered moth used to be a light color with black spots. When the atmosphere in London became filled with soot because of the Industrial Revolution, the white trees became darker and light colored moths were eaten by birds more readily. Within months, moths became darker and lighter moths were rare. After the Industrial Revolution, light colored moths were found in greater numbers( Our simulation activity will discuss this in greater detail) .
- 6. • 4)- Fitness- inherited characteristics that increases chances of survival—an animals' reproductive success • 5)-Heritable Traits- Many variations in traits are heritable—the traits are passed from parent to offspring through DNA—differences in individuals traits influence their survival & are heritable population will evolve by natural selection. http://www.mnh.si.edu/exhibits/darwin/naturalselection.html
- 7. • http://www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html Four conditions of natural selection involved in the process of evolution • 1-Overproduction of offspring—more offspring are produced than can survive • 2-Genetic Variation in a population—Difference between organisms • 3. Struggle to Survive—some organisms are better adapted and survive, and others die • 4. Successful Reproduction—organisms that are better adapted and survive reproduce and pass their "good" genes on
- 8. The peppered moth used to be a light color with black spots. When the atmosphere in London became filled with soot because of the Industrial Revolution, the white trees became darker and light colored moths were eaten by birds more readily. Within months, moths became darker and lighter moths were rare. After the Industrial Revolution, light colored moths were found in greater numbers.
- 9. • Pepper Moth Activity Directions: http://www.biologycorner.com/worksheets/peppermoth_paper.html
- 10. • Rules/Directions for Jeopardy Assessments • https://www.superteachertools.us/jeopardyx/jeopardy-review-game.php?gamefile=1521094
- 11. • Challenge Options • Write a one sentence or one paragraph summary of todays lesson, or for the tech savvy and artistic students create a 1-2 minute video, rap, or graphic collage detailing today’s lesson. • Email your sentences, summations, artwork, videos, or musical production to owashin@siue.edu or howens@siue.edu these items will be uploaded into our class website- • Create a sematic web or concept map—Natural Selection or the Evidence of Evolution