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Course
Course

... of survival for individuals and their genetic relatives. LS4.A as found in HS-LS4-1 • Genetic information, like the fossil record, provides evidence of evolution. DNA sequences vary among species, but there are many overlaps; in fact, the ongoing branching that produces multiple lines of descent can ...
Darwin and Evolution
Darwin and Evolution

...  More individuals are produced in each generation than environment can support  Some individuals have adaptive characteristics • Favorable traits that result in increased survival and reproduction ...
File - The Science of Payne
File - The Science of Payne

... Early scientists proposed ideas about evolution. • Evolution is the biological change process by which descendants come to differ from their ancestors. • A species is a group of organisms that can reproduce and have fertile offspring. ...
Evolution Definitions
Evolution Definitions

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Introduction – Chapter 13 13.1 A sea voyage helped Darwin frame
Introduction – Chapter 13 13.1 A sea voyage helped Darwin frame

... 13.7 Evolution occurs within populations  A gene pool is the total collection of genes in a population at any one time.  Microevolution is a change in the relative frequencies of alleles in a gene pool over time.  Population genetics studies how populations change genetically over time.  The mod ...
EOC Biology Prep Reporting Category 3 Biological Evolution and
EOC Biology Prep Reporting Category 3 Biological Evolution and

... How is this diagram useful to ...
Evolution worksheet09
Evolution worksheet09

... Learning Target: Support evolutionary theory with evidence. 22. Define Evolution: ...
Cases from History 2
Cases from History 2

... relations to several distinct organic beings, by the effects of external conditions, or of habit, or of the volition of the plant itself. The author of the ‘Vestiges of Creation’ would, I presume, say that, after a certain unknown number of generations, some bird had given birth to a woodpecker, and ...
Building Critical Thinkers
Building Critical Thinkers

... The Big Bang, 2001, p. 170. “Imagine that infinitesimal fluctuations in density were present in the early universe…. The expansion of the universe must have exerted a stabilizing influence on such irregularities. The expanding universe has the effect of greatly impeding what otherwise might have bee ...
174-16-Winter_2_7-Ja.. - Department of Biology
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 ...
Evolution by Natural Selection
Evolution by Natural Selection

... likely to survive to adulthood. These genes would be more common in the next generation, since more of the cubs with these genes would survive to reproduce. A characteristic that is influenced by genes and passed from parents to offspring is called heritable. Over many generations heritable adaptive ...
Ecology Question Set 1
Ecology Question Set 1

... example, predation and competition can exert their effects on populations in a matter of minutes, hours or days, often much shorter than the lifespan of the individuals involved in the interaction. The additive effects of many ecological processes will result in evolutionary change. In some cases, t ...
C. transcription - Partners4results
C. transcription - Partners4results

... ______46. Ticks carry bacteria that cause Lyme disease. Ticks do not get Lyme disease, but they can transfer the bacteria to humans, who can get the disease. Which of the following statements best describes the relationships among the bacteria, the ticks, and the humans? A. The relationship between ...
APES Learning Goal
APES Learning Goal

... •I can explain the effects of fracking on the environment. I can explain the effects of fracking on the environment. ...
Key
Key

... Darwin’s Conclusion  Individuals who inherit characteristics most fit for their environment are likely to reproduce more offspring than less fit individuals.  The unequal ability of individuals to survive and reproduce leads to a gradual change in a population, with favorable characteristics accu ...
chapt22_lecture b
chapt22_lecture b

... The Future of Evolution Human influences on the environment affect the evolutionary processes • Changing patterns of natural selection • Global climate change: major challenge for many species • Decreased population sizes will increase the likelihood of genetic drift • Geographic isolation will rem ...
Organismal Biology Review for Test #1 (on 9 February 2005)
Organismal Biology Review for Test #1 (on 9 February 2005)

... Test will be all multiple choice – probably 50-60 questions. There will be some questions that have options like: a and b, b and c, all the above, none of the above. Chapter 22 – Descent with Modification… On the Origin of Species – written by Charles Darwin, published 1859; purpose of HMS Beagle’s ...
File
File

... supporting evolution  SWBAT explain how homologous structures demonstrate common ancestry (relatedness) and support evolutionary theory  SWBAT identify examples of vestigial structures and explain how vestigial structures provide evidence supporting evolution ...
Biology Common Core Curriculum Standards
Biology Common Core Curriculum Standards

... Each chromosome consists of a single very long DNA molecule, and each gene on the chromosome is a particular segment of that DNA. The instructions for forming species’ characteristics are carried in DNA. (a) All cells in an organism have the same genetic content, but the genes used (expressed) by th ...
Evolution Quiz
Evolution Quiz

... 2. True or false. Darwin’s theory is about how things were created. (1 point) 3. Variations are ______________________________________________________ (1 points) 4. What is an adaptation? (1 points) 5. Fitness is the ability to (1 points) a. be the biggest and strongest b. camouflage c. survive and ...
lecture04
lecture04

... -Darwin confined natural selection to small, continuous variation How could new spp arise from small variations? -successive change through time How could small variations confer an advantage? -Darwin could not answer, later demonstrated How could selection act on a nonexistent trait? -preadaptation ...
Biology - Cobb Learning
Biology - Cobb Learning

... a) evaluating the results of DNA comparisons in forensic sciences – Forensic scientists use DNA fingerprinting to identify suspects and victims in criminal cases, to determine paternity and to identify soldiers killed in war. b) justifying the use of gene therapy in medicine – Gene therapy can be us ...
B2_learning_outcomes
B2_learning_outcomes

... initially met with hostility? Give examples of natural selection ...
9-12 Life Science
9-12 Life Science

... HS-LS4-1 Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence. HS-LS4-2 Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to i ...
Charles Darwin developed a theory of evolution based on natural
Charles Darwin developed a theory of evolution based on natural

... Almost every specimen Darwin collected on the Galápagos was new to European scientists, though they were similar to species on mainland South America. ...
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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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