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6.1 Evidence of evolution – Questions and answers Q1. Bk Ch6 S6.1
6.1 Evidence of evolution – Questions and answers Q1. Bk Ch6 S6.1

... Explain what is meant by biogeography. Outline how the biogeography of the waratah lends support to the theory of evolution suggested by Alfred Wallace. Is the evolution of the waratah an example of divergent or convergent evolution? Explain your ...
Darwin`s Evidence for Evolution
Darwin`s Evidence for Evolution

...  Similar in anatomy doing different potentially different functions  Darwin believed this was evidence that all species were original descended from one ...
WebQuest on Natural Selection
WebQuest on Natural Selection

... --------------------------------------------------------------------------------------------------------------------------------------The medium ground finch is found on several of the Galapagos Islands. This species of bird prefers to eat small seeds, which are easier to eat than large seeds. Howev ...
Chapter 15
Chapter 15

...  Geologic processes form slowly so Earth was much older than 2,000 years. Lyell – geologist who wrote “Principles of Geology”  We must explain past events from what we see today. For example, earthquakes and volcanoes Based on these geologists Darwin asked himself 2 ...
Bacteria (multiple kingdoms)
Bacteria (multiple kingdoms)

...  Natural selection is an editing mechanism – It results from exposure of heritable variations to environmental factors that favor some individuals over others – Over time this results in evolution of new species adapted to particular environments – Evolution is biology’s core theme and explains uni ...
Lamarck`s Theory of Evolution Tendency Toward Perfection
Lamarck`s Theory of Evolution Tendency Toward Perfection

... Natural selection • Something like artificial selection occurs in nature – called natural selection • However, the traits being selected contribute to an organism’s fitness without human control • There is always a struggle for existence & the “fitness” of an organism depends on its survival & its ...
Organic Evolution - Sewanhaka Central High School District
Organic Evolution - Sewanhaka Central High School District

... new species caused by natural selection • In gradualism slight changes in each generation lead to a longer, slower speciation process • In punctuated equilibrium an extreme environmental change caused a rapid shift in the gene pool leading to a quick speciation process ...
Biology - Columbus - Columbus City Schools
Biology - Columbus - Columbus City Schools

... Gene mutations (when they occur in gametes) can be passed on to offspring. Genes code for protein. The sequence of DNA bases in a chromosome determines the sequence of amino acids in a protein. “The many body cells in an individual can be very different from one another, even though they are all des ...
Notes for Evolution
Notes for Evolution

... Cuvier was a French scientist who largely developed the science of paleontology. The study of fossils helps provide support for the theory of evolution. .Cuvier realized that each layer of rock is characterized by a unique group of fossil species. The deeper or older the layer, the more dissimilar p ...
Adapt or die File
Adapt or die File

...  Predict what the population will look like after a few generations. Why? ...
Evolution
Evolution

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Chapter 15 note - schallesbiology
Chapter 15 note - schallesbiology

... dozens of the huge land tortoises. The adults were eaten but some small tortoises were taken on the ship around the world. • Harriet, mistakenly named “Harry” and thought to be male for over a century, was 330 lbs & a star at the Australian zoo. Many people believe she was one of Charles Darwin’s to ...
Unit 8: Evolution - Sonoma Valley High School
Unit 8: Evolution - Sonoma Valley High School

... 6. Make of flow chart of the both the changes and causes of the changes in horses over the past 60 million years. 7. Explain how the following are used to support the theory of evolution: homology, development, and imperfect structures. After reading pg: 436-446: Define the following terms: speciati ...
Evolution- Quiz Wiz
Evolution- Quiz Wiz

... 1. Blood proteins in horses are chemically similar to blood proteins in monkeys. This similarity suggests that horses and monkeys: a. can interbreed b. evolved at the same time c. live in the same habitat d. have a common ancestor ...
ORGANIZATION AND CLASSIFICATION
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... Observe each fruit and choose four characteristics by which you can tell the fruits apart. Label the columns in your table with these four characteristics. Fill out the chart. ...
Honors Biology Test Review
Honors Biology Test Review

... 11. Describe in general how selection may change a species over time. 12. Describe the 3 types of selection (stabilizing, disruptive, and directional). Be able to give an example of when each may occur, or be able to identify a described example as one of the three types of selection. 13. Define spe ...
Evolution Unit
Evolution Unit

... 1. Fossils can be dated by a variety of methods that provide evidence for evolution. These include the age of the rocks where a fossil is found, the rate of decay of isotopes including carbon-14, the relationships within phylogenetic trees, and the mathematical calculations that take into account in ...
Evolution Quiz Week 9
Evolution Quiz Week 9

... o Structure plot: you set order of individuals (populations) and program picks colors to determine population structure o Chance of restriction enzyme finding gene is very small, most of genome is introns  Genetic hitchhiking: Detect genes by landing close with restriction site, see genes that have ...
Animal Behavior
Animal Behavior

... If the “mutation” allows for the organism to survive and reproduce it may become a new trait and in fact it may create a new species with those traits being important/necessary for their survival. Competition for resources and the ever changing environment calls for organisms to change if they are g ...
Spring Semester Exam Review
Spring Semester Exam Review

... Q9. Why do turtles lay more eggs than can survive? (hint: think about what happens to a lot of them as they travel to the ocean after they hatch) OVERPRODUCTION is necessary because natural selection requires that some organisms will be less fit and die off. If there were not more offspring than can ...
evolution notes - bio 520
evolution notes - bio 520

... 5. Common descent - theory that all living things share a common ancestor presumably a one-celled creature of some sort. It is usually postulated that new species arise over time through natural selection, and that over very long periods of time the vast diversity of living things was produced. (cli ...
AP Biology Unit 7—Evolutionary Biology
AP Biology Unit 7—Evolutionary Biology

... Natural selection was the mechanism that Darwin proposed for evolution. With the understanding of genetics, it became evident that factors other than natural selection can change allele frequencies and thus promote evolution. These factors, together with natural selection, are given below. Describe ...
Evolution Workbook - National Aquarium of New Zealand
Evolution Workbook - National Aquarium of New Zealand

... This unit of work has been designed to support your class visit for the ‘Evolution – A New Zealand Perspective’ programme at the National Aquarium of New Zealand. Students will participate in a range of level specific interactive activities. The primary focus of this programme is the Living World St ...
Darwin
Darwin

... population of similar organisms that can reproduce and produce fertile offspring ...
Q4 - Franklin County Community School Corporation
Q4 - Franklin County Community School Corporation

... List and describe types of Natural selection. Identify some the consequences of the interactions of species such as increased numbers, genetic mutations, and genetic variation. Identify basic trends in early evolution. Describe conditions that are conducive for natural selection to occur. Explain ho ...
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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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