hereditarianism - Evergreen State College Archives
... 1. heredity • characteristics are passed from one generation to the next ...
... 1. heredity • characteristics are passed from one generation to the next ...
Elements of Biology: Evolution
... 1. Begin the lesson by asking students to write down any controversies about evolution they may be familiar with. The controversies could be recent or historical. Tell those who are not familiar with controversies that it does not matter. Have students put away their papers until the end of the less ...
... 1. Begin the lesson by asking students to write down any controversies about evolution they may be familiar with. The controversies could be recent or historical. Tell those who are not familiar with controversies that it does not matter. Have students put away their papers until the end of the less ...
Natural Selection in REal time - Serrano High School Biology I
... While beak size is clearly related to feeding strategies, it is also related to reproduction. Female finches tend to mate with males that have the same size beaks. These factors together can add to the development of new species. The Grants return each year to Daphne Major to observe and measure fin ...
... While beak size is clearly related to feeding strategies, it is also related to reproduction. Female finches tend to mate with males that have the same size beaks. These factors together can add to the development of new species. The Grants return each year to Daphne Major to observe and measure fin ...
2013_Cryan_Sexual_Selection copy
... females is the primary limiting factor in reproductive success, males will compete with other males for mating opportunities Intersexual Selection (Female Choice): If female reproductive success is not limited by access to males, then females will be selective about which males they mate with in or ...
... females is the primary limiting factor in reproductive success, males will compete with other males for mating opportunities Intersexual Selection (Female Choice): If female reproductive success is not limited by access to males, then females will be selective about which males they mate with in or ...
What Should Politicians Say When Asked About Evolution?
... Asked About Evolution?" but I first explained why it is a difficult question for many politicians, especially conservative ones, to answer. There are three main reasons. First, the term "evolution" can mean several different things, ranging from (1) the scientifically uncontroversial idea of "change ...
... Asked About Evolution?" but I first explained why it is a difficult question for many politicians, especially conservative ones, to answer. There are three main reasons. First, the term "evolution" can mean several different things, ranging from (1) the scientifically uncontroversial idea of "change ...
Molecular Evolution of New Species without Modern Synthetic Theory
... of a life. The ‘Cynodon’ reptiles became extinct and they were succeeded by their own descendants, the adaptively superior mammals. In Darwin’s words ‘The extinction of old forms is the almost inevitable (predictable) consequence of the production of new forms’ (Darwin, 1859). In contrast, synthetic ...
... of a life. The ‘Cynodon’ reptiles became extinct and they were succeeded by their own descendants, the adaptively superior mammals. In Darwin’s words ‘The extinction of old forms is the almost inevitable (predictable) consequence of the production of new forms’ (Darwin, 1859). In contrast, synthetic ...
Station #1 – Insect Insanity
... island killing many of the trees and plants. All that is left is the bare soil with some worms, ants, and other bugs crawling around. Three types of finches have flown over to the island: a cactus ground finch, a vegetarian tree finch, and a large ground finch. Which finch do you think is best adapt ...
... island killing many of the trees and plants. All that is left is the bare soil with some worms, ants, and other bugs crawling around. Three types of finches have flown over to the island: a cactus ground finch, a vegetarian tree finch, and a large ground finch. Which finch do you think is best adapt ...
Second Semester Biology Exam Review (2015
... similarities observed among the diverse species of living organisms 10. Discuss evidence from the fields of geology (fossils), comparative biochemistry, comparative embryology, comparative anatomy (Homologous and vestigial structures), and analogous structures that points to shared evolutionary rela ...
... similarities observed among the diverse species of living organisms 10. Discuss evidence from the fields of geology (fossils), comparative biochemistry, comparative embryology, comparative anatomy (Homologous and vestigial structures), and analogous structures that points to shared evolutionary rela ...
Evolution Timeline Webhunt
... 6. Soon after returning from the HMS Beagle trip, Darwin sketches “the tree of life”. What does the “tree of life” show about all life on Earth? ____________________________________________ ____________________________________________________________________________ ...
... 6. Soon after returning from the HMS Beagle trip, Darwin sketches “the tree of life”. What does the “tree of life” show about all life on Earth? ____________________________________________ ____________________________________________________________________________ ...
Charles Darwin WS
... 6. Soon after returning from the HMS Beagle trip, Darwin sketches “the tree of life”. What does the “tree of life” show about all life on Earth?____________________________________________ ____________________________________________________________________________ ...
... 6. Soon after returning from the HMS Beagle trip, Darwin sketches “the tree of life”. What does the “tree of life” show about all life on Earth?____________________________________________ ____________________________________________________________________________ ...
174-16-Winter_2_7-Ja.. - Department of Biology
... 1. Simply to describe how different kinds of animals meet their needs. = cataloging biological diversity "Biodiversity" often = how many species But perhaps equally important is how variable are those species, morphologically, physiologically, behaviorally? In other words, functional diversity. Rece ...
... 1. Simply to describe how different kinds of animals meet their needs. = cataloging biological diversity "Biodiversity" often = how many species But perhaps equally important is how variable are those species, morphologically, physiologically, behaviorally? In other words, functional diversity. Rece ...
The Spandrels of San Marco and the Panglossian Paradigm: A
... phenomenon by declaring rivals impossible in theory. Rather, you acknowledge the rival but circumscribe its domain of action so narrowly that it cannot have any importance in the affairs of nature. Then, you often congratulate yourself for being such an undogmatic and ecumenical chap. We maintain th ...
... phenomenon by declaring rivals impossible in theory. Rather, you acknowledge the rival but circumscribe its domain of action so narrowly that it cannot have any importance in the affairs of nature. Then, you often congratulate yourself for being such an undogmatic and ecumenical chap. We maintain th ...
Researchers identify 6,500 genes that are expressed differently in
... the less selection we saw on the gene. And one are more likely to be passed down, including those more difference: This selection was even weaker that impair fertility. From this vantage point, men with men," says Gershoni. Although they do not and women undergo different selection pressures have a ...
... the less selection we saw on the gene. And one are more likely to be passed down, including those more difference: This selection was even weaker that impair fertility. From this vantage point, men with men," says Gershoni. Although they do not and women undergo different selection pressures have a ...
Evolution - Monday Munchees
... interbreeding off the coast of Australia – creating the first hybrid sharks ever seen. Australian blacktips, which live in tropical waters, have been mating with common blacktips, which are able to tolerate lower temperatures, producing offspring that can tolerate a broader range of water temperatur ...
... interbreeding off the coast of Australia – creating the first hybrid sharks ever seen. Australian blacktips, which live in tropical waters, have been mating with common blacktips, which are able to tolerate lower temperatures, producing offspring that can tolerate a broader range of water temperatur ...
Section 2 notes
... A growing fossil record suggested that life evolved, but how did life evolve. Jean-Baptiste Lamarck proposed that organisms could change during their lives by using or not using body parts, and that individuals could pass these acquired traits on to their offspring, enabling species to change over t ...
... A growing fossil record suggested that life evolved, but how did life evolve. Jean-Baptiste Lamarck proposed that organisms could change during their lives by using or not using body parts, and that individuals could pass these acquired traits on to their offspring, enabling species to change over t ...
Evolutionary naturalism: an ancient idea
... explained the origin of life, and he also taught that all living organism types gradually evolved by the process of trial-and-error recombinations of animal parts.6 He also believed that natural selection was the primary mechanism of evolution, the fittest being more likely to survive to pass their ...
... explained the origin of life, and he also taught that all living organism types gradually evolved by the process of trial-and-error recombinations of animal parts.6 He also believed that natural selection was the primary mechanism of evolution, the fittest being more likely to survive to pass their ...
Evolution Part 2
... • Darwin was convinced a process like artificial selection was at work in nature. • Darwin recalled the work of Malthus on population growth – having too many offspring to all survive would result in a competition for resources. • Which ones, Darwin wondered, would be the most likely to survive and ...
... • Darwin was convinced a process like artificial selection was at work in nature. • Darwin recalled the work of Malthus on population growth – having too many offspring to all survive would result in a competition for resources. • Which ones, Darwin wondered, would be the most likely to survive and ...
How do species evolve?
... Start of Hawaiian Drosophila radiation dated to 20 Mya Similar speciation patterns for Hawaiian snails and crickets ...
... Start of Hawaiian Drosophila radiation dated to 20 Mya Similar speciation patterns for Hawaiian snails and crickets ...
Chapter 3 The Development of Behavior: A Focus on Heredity
... One can create two strains of mice that are identical in every respect, expect for a single gene that encodes an enzyme called !-calcium-calmodulin kinase The absence of this one enzyme causes the hippocampus (a region of the mammalian brain thought to be involved in spatial learning) to develop abn ...
... One can create two strains of mice that are identical in every respect, expect for a single gene that encodes an enzyme called !-calcium-calmodulin kinase The absence of this one enzyme causes the hippocampus (a region of the mammalian brain thought to be involved in spatial learning) to develop abn ...
Strand 3 - Biological Sciences
... 13. Organisms that have traits that make them better able to survive will live long enough to reproduce and pass on these traits to the next generation. This is called A. homologous structures B. co-evolution C. natural selection D. vestigial 14. Type of reproduction that involves only one cell is c ...
... 13. Organisms that have traits that make them better able to survive will live long enough to reproduce and pass on these traits to the next generation. This is called A. homologous structures B. co-evolution C. natural selection D. vestigial 14. Type of reproduction that involves only one cell is c ...
Unit 1: Evolution Study Guide Big Idea 1: The process of evolution
... problem, so read and think carefully. A complete solution for this problem is at the end of this Reading Guide.) 1.a.2 Natural selection acts on phenotypic variations in populations. 23.1, 23.4 Concept 23.1 Mutation and sexual reproduction produce the genetic variation that makes evolution possible ...
... problem, so read and think carefully. A complete solution for this problem is at the end of this Reading Guide.) 1.a.2 Natural selection acts on phenotypic variations in populations. 23.1, 23.4 Concept 23.1 Mutation and sexual reproduction produce the genetic variation that makes evolution possible ...
Introduction to evolution
Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits. Genetic changes include mutations, which are caused by damage or replication errors in an organism's DNA. As the genetic variation of a population drifts randomly over generations, natural selection gradually leads traits to become more or less common based on the relative reproductive success of organisms with those traits.The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in western Greenland. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.Evolution does not attempt to explain the origin of life (covered instead by abiogenesis), but it does explain how the extremely simple early lifeforms evolved into the complex ecosystem that we see today. Based on the similarities between all present-day organisms, all life on Earth originated through common descent from a last universal ancestor from which all known species have diverged through the process of evolution. All individuals have hereditary material in the form of genes that are received from their parents, then passed on to any offspring. Among offspring there are variations of genes due to the introduction of new genes via random changes called mutations or via reshuffling of existing genes during sexual reproduction. The offspring differs from the parent in minor random ways. If those differences are helpful, the offspring is more likely to survive and reproduce. This means that more offspring in the next generation will have that helpful difference and individuals will not have equal chances of reproductive success. In this way, traits that result in organisms being better adapted to their living conditions become more common in descendant populations. These differences accumulate resulting in changes within the population. This process is responsible for the many diverse life forms in the world.The forces of evolution are most evident when populations become isolated, either through geographic distance or by other mechanisms that prevent genetic exchange. Over time, isolated populations can branch off into new species.The majority of genetic mutations neither assist, change the appearance of, nor bring harm to individuals. Through the process of genetic drift, these mutated genes are neutrally sorted among populations and survive across generations by chance alone. In contrast to genetic drift, natural selection is not a random process because it acts on traits that are necessary for survival and reproduction. Natural selection and random genetic drift are constant and dynamic parts of life and over time this has shaped the branching structure in the tree of life.The modern understanding of evolution began with the 1859 publication of Charles Darwin's On the Origin of Species. In addition, Gregor Mendel's work with plants helped to explain the hereditary patterns of genetics. Fossil discoveries in paleontology, advances in population genetics and a global network of scientific research have provided further details into the mechanisms of evolution. Scientists now have a good understanding of the origin of new species (speciation) and have observed the speciation process in the laboratory and in the wild. Evolution is the principal scientific theory that biologists use to understand life and is used in many disciplines, including medicine, psychology, conservation biology, anthropology, forensics, agriculture and other social-cultural applications.