In this chapter, you will learn about the different types of evolution. You will also complete a worksheet to help you understand the theory of evolution. Evolution is a scientific process that explains how living things change over time. The theory of evolution is supported by a large amount of evidence, and it is one of the most studied theories in science. Thanks for studying with me! Show
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In your textbook, read about Charles Darwin and natural selection. For each statement, write true or false. ____________________ 1. H.M.S. Beagle, upon which Charles Darwin served as naturalist, set sail on a collecting and mapping expedition in 1831. ____________________ 2. The environments that Darwin studied exhibited little biological diversity. ____________________ 3. By careful anatomical study, Darwin found that the many species of plants and animals on the Galapagos Islands were unique and bore no relation to species seen in other parts of the world. ____________________ 4. The tortoises of the Galapagos Islands are among the largest on Earth. ____________________ 5. After returning to England, Darwin studied his collections for 10 years. ____________________ 6. Darwin named the process by which evolution proceeds artificial selection. You are a naturalist who traveled to the Galapagos Islands. Below are excerpts from field notes. Next to each set of notes, write a heading. Use these choices: Overproduction of Offspring, Natural Selection, Struggle for Existence, Variation. Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Field Notes Female finches found on the Galapagos Islands lay enormous numbers of eggs. Overproduction of Offspring __________________________________ Field Notes Some finches’ beaks are long, some are short.The finches with long beaks are better adapted to remove the insects from the bark. Variation __________________________________ Field Notes These finches compete for a particular species of insect that inhabits the small holes found in tree bark. Struggle for Existence __________________________________ Field Notes The finches with the long beaks survive and produce greater numbers of offspring with long beaks. Natural Selection __________________________________
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SECTION 15.1 NATURAL SELECTION AND THE EVIDENCE FOR EVOLUTION, CONTINUED In your textbook, read about natural selection and adaptations. Identify the type of structural adaptation that the statement describes. If the statement applies to both, write both. Use these choices: mimicry, camouflage, both. ____________________ 11. Enable(s) an organism to blend in with its surroundings
In your textbook, read about evidence for evolution. Complete the chart by checking the kind of evidence described.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Chapter 15 Theory Of Evolution Worksheet Form isn’t the one you’re looking for?What evolution means answer?In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
What are the four principles of Darwin's natural selection?There are four principles at work in evolution—variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
What did Darwin infer based on his theory of evolution by natural selection?He inferred that natural selection could also change wild species over time. In fact, he thought that if a species changed enough, it might evolve into a new species.
How are natural selection and evolution related?Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
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Chapter 15 the theory of evolution worksheet answer key
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