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Evolution - Effingham County Schools
Evolution - Effingham County Schools

... related organisms will be more similar to one another than more distantly related organisms. • Comparison of the human genetic code with that of other organisms show that chimpanzees are nearly genetically identical (differ by less than 1.2%) whereas the mouse differs by ≈15%. ...
EVOLUTION - inetTeacher
EVOLUTION - inetTeacher

... Artificial selection- nature provides the variation among different organisms, and humans select those variations they find useful. ...
Natural Selection vs. Selective Breeding
Natural Selection vs. Selective Breeding

... • The island’s geography (environment) cause different types of species to be selected. ...
Evolution as Theory and Fact
Evolution as Theory and Fact

... Creationism accounts for biological diversity by referring to the divine act of Creation as described in the book of Genesis Catastrophism is a modified version of Creationism, which accounts for the fossil record by positing divinely authored worldwide disasters that wiped out the creatures represe ...
Chapter 15 - MsHollandScience
Chapter 15 - MsHollandScience

... He wondered where all these species had gone and who they might be related to… ...
Part 1: The Pace of Evolutionary Change
Part 1: The Pace of Evolutionary Change

... outside agents or forces. In other words, the proportion of dominant to recessive genes remains the same. The Hardy-Weinberg law describes the genetics of non-evolving populations. A non-evolving population is said to be in Hardy-Weinberg equilibrium. ...
File
File

... Nomenclature= the 2 name naming system. It is written in Latin. Common names can often be confusing so scientists use the scientific name. The scientific name is the same all over the world. This name has two parts = the genus and species. Genus is always capitalized. The species is not capitalized. ...
natural selection [Read-Only]
natural selection [Read-Only]

... Evolution is: a change in gene frequencies over time. We’ll get back to this. Natural selection is a mechanism that can lead to evolution. ...
Biol 101 Surveyof Biology Exam 6 Study Questions.
Biol 101 Surveyof Biology Exam 6 Study Questions.

... 8) Which of the following assumptions was not part of Darwin's theory of natural selection? A) Organisms compete for limited resources. B) Organisms vary in heritable ways. C) The Earth is very old. D) Traits are inherited as discrete particles. E) Populations produce more offspring than their envir ...
Evolution Study Guide
Evolution Study Guide

... 17. What is the difference between observations, inferences, hypotheses, and scientific theories? 18. Put the following in order of when they evolved: amphibians, birds, fish, bacteria, mammals, humans, reptiles. 19. How does Lamarck’s theory differ from Darwin and Wallace’s theory? 20. What are ex ...
TRUE FALSE 1. If two individuals are able to have offspring, they
TRUE FALSE 1. If two individuals are able to have offspring, they

... 3. This, too, is false. Many other species (e.g. some species of fish) have more chromosomes. 4. This is so, since there are 20 (standard) amino acids. If the codon contained only two letters, they could encode at most 42=16 amino acids. With three letters, there are 64 possibilities, leading to som ...
Evolution
Evolution

... most commonly accepted theory  The foundations of the modern synthesis, based on Darwin’s model, were laid by several key biologists:  Ronald Fisher  Sewall Wright  J.B.S. Haldane ...
Biological Evolution
Biological Evolution

... Darwin titled his book “On the Origin of Species…” because he saw this part of his idea as one of the most important contributions of his ideas. HOW SPECIES FORM. ...
Document
Document

... Are you still paying Attention? ...
The Modern Synthesis: Evolution and Genetics
The Modern Synthesis: Evolution and Genetics

... What Darwin didn’t know… • How do organisms inherit traits? How are traits passed on from one generation to the next? ...
Mechanism of Evolution
Mechanism of Evolution

... Many diseases caused by bacteria have been successfully treated with penicillin and other antibiotics. However, since WWII, when the use of antibiotics became widespread, many disease-causing bacteria have developed resistance against antibiotics. There are strains of bacteria causing tuberculosis, ...
CHAPTER 3: EVOLUTION, GENETICS, AND HUMAN VARIATION
CHAPTER 3: EVOLUTION, GENETICS, AND HUMAN VARIATION

... 3. Darwin applied the theory of the long-term transformation through natural forces to living things, and, when integrated into evolutionary theory, uniformitarianism cast doubt on whether the world was only 6,000 years old, as posited in creationism. 4. Like other evolutionists, Darwin argued for t ...
Document
Document

... Are you still paying Attention? ...
Evolution Mechanisms
Evolution Mechanisms

...  Clones, which have identical genes, are all strong in the same areas and weak in the same areas. One event (drastic environmental change, new germ, loss of particular food source) could kill them all at once. ...
ppt
ppt

... each had specific traits that would allow them access to a specific food source on the island. ...
Evolution - Palomar College
Evolution - Palomar College

... each had specific traits that would allow them access to a specific food source on the island. ...
File - CORE Charter FFA and Agriculture Program
File - CORE Charter FFA and Agriculture Program

... reproduce in its specific environment B. Adaptation: any inherited characteristic that increases an organism’s chance of survival c. Survival of the fittest: the process where individuals that are better suited to their environment survive and reproduce most successfully ...
2015-16/Evolution Jeopardy
2015-16/Evolution Jeopardy

... In a sexually reproducing species, evolution could occur as a result of (1) modification of genes in body cells (2) modification of genes in sex cells (3) increased reproduction among individuals with identical chromosomes (4) recombination of genes in cells reproducing by mitosis ...
Species are “fixed in form”!
Species are “fixed in form”!

... By early 1852 Wallace was in ill health and in no condition to proceed any further. He decided to quit South America, and began the long trip back down the Rio Negro and Amazon to Pará. When he finally reached the town on the 2nd of July, he found that his younger brother Herbert had died of yellow ...
Homework one
Homework one

... One copy has to be turned into Dr. Feaver at the beginning of class. Late copies are not accepted. Lined paper must be used and writing must be legible. If I have trouble reading your paper, your grade on those question affected will be 0. You are highly encouraged to draft your homework assignments ...
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Evolution



Evolution is change in the heritable traits of biological populations over successive generations. Evolutionary processes give rise to diversity at every level of biological organisation, including the levels of species, individual organisms, and molecules.All of life on earth shares a common ancestor known as the last universal ancestor, which lived approximately 3.5–3.8 billion years ago. Repeated formation of new species (speciation), change within species (anagenesis), and loss of species (extinction) throughout the evolutionary history of life on Earth are demonstrated by shared sets of morphological and biochemical traits, including shared DNA sequences. These shared traits are more similar among species that share a more recent common ancestor, and can be used to reconstruct a biological ""tree of life"" based on evolutionary relationships (phylogenetics), using both existing species and fossils. The fossil record includes a progression from early biogenic graphite, to microbial mat fossils, to fossilized multicellular organisms. Existing patterns of biodiversity have been shaped both by speciation and by extinction. More than 99 percent of all species that ever lived on Earth are estimated to be extinct. Estimates of Earth's current species range from 10 to 14 million, of which about 1.2 million have been documented.In the mid-19th century, Charles Darwin formulated the scientific theory of evolution by natural selection, published in his book On the Origin of Species (1859). Evolution by natural selection is a process demonstrated by the observation that more offspring are produced than can possibly survive, along with three facts about populations: 1) traits vary among individuals with respect to morphology, physiology, and behaviour (phenotypic variation), 2) different traits confer different rates of survival and reproduction (differential fitness), and 3) traits can be passed from generation to generation (heritability of fitness). Thus, in successive generations members of a population are replaced by progeny of parents better adapted to survive and reproduce in the biophysical environment in which natural selection takes place. This teleonomy is the quality whereby the process of natural selection creates and preserves traits that are seemingly fitted for the functional roles they perform. Natural selection is the only known cause of adaptation but not the only known cause of evolution. Other, nonadaptive causes of microevolution include mutation and genetic drift.In the early 20th century the modern evolutionary synthesis integrated classical genetics with Darwin's theory of evolution by natural selection through the discipline of population genetics. The importance of natural selection as a cause of evolution was accepted into other branches of biology. Moreover, previously held notions about evolution, such as orthogenesis, evolutionism, and other beliefs about innate ""progress"" within the largest-scale trends in evolution, became obsolete scientific theories. Scientists continue to study various aspects of evolutionary biology by forming and testing hypotheses, constructing mathematical models of theoretical biology and biological theories, using observational data, and performing experiments in both the field and the laboratory. Evolution is a cornerstone of modern science, accepted as one of the most reliably established of all facts and theories of science, based on evidence not just from the biological sciences but also from anthropology, psychology, astrophysics, chemistry, geology, physics, mathematics, and other scientific disciplines, as well as behavioral and social sciences. Understanding of evolution has made significant contributions to humanity, including the prevention and treatment of human disease, new agricultural products, industrial innovations, a subfield of computer science, and rapid advances in life sciences. Discoveries in evolutionary biology have made a significant impact not just in the traditional branches of biology but also in other academic disciplines (e.g., biological anthropology and evolutionary psychology) and in society at large.
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