Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 15, Problem 1FIB

The flipper of a seal is homologous with the _____ of a bird, and both of these are homologous with the _____ of a human. The wing of a bird and the wing of a butterfly are described as _____ structures that arose as a result of _____ evolution. Remnants of structures in animals that have no use for them, such as the small hind leg bones of whales, are described as _____ structures.

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When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided that the marine iguana evolved from the terrestrial iguana found on the mainland of South America. The marine iguana differs from the terrestrial iguana in several ways. The marine iguana has a flat tail, long claws and sharp teeth while the terrestrial iguana has a round tail, short claws and flat teeth. When looking at the differences between the terrestrial and the marine iguana, which of the following is not evidence that evolution has occurred? * O Homologous structures shared between both iguanas O The biogeography of the iguanas O Comparative embryology of the iguanas The state of Hardy-Weinberg equilibrium present in both iguanas
Birds and butterflies have wings they use for flying. The wings of butterflies are made of semitransparent, tough scales. Bird wings are covered with feathers. The wings of birds and butterflies did not evolve from a common ancestor that had wings. Instead, they have evolved as a result of similar environmental pressures. Which statement best explains the evolutionary relationship of birds and butterflies? Bird and butterfly wings are a result of divergent evolution because birds and butterflies did not evolve from a winged common ancestor. Bird and butterfly wings are a result of convergent evolution because birds and butterflies evolved from a winged common ancestor. Bird and butterfly wings are analogous structures because they have similar functions, are structurally different, and are a result of convergent evolution. Bird and butterfly wings are homologous structures because they have similar functions, are structurally the same, and are a result of divergent evolution.
Because the genomes of chimpanzees and humans are almost identical, and the difference between them are no greater than any two humans, their classification has been changed. Chimpanzees and humans are placed in the same family and subfamily. They are in different “tribes”, which is a rarely used classification category between subfamily and genus. The former classification of chimpanzees and humans placed them in different families. Do you believe that chimpanzees should be classified in the same family and/or subfamily as humans? Or do you prefer the previous classification? Which way seems prejudicial? Give your reasonings

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FOSSIL FRIDAY: Primate Evolution | Grades 7-10; Author: Museum of the Rockies;https://www.youtube.com/watch?v=9tVLfvm3AFk;License: Standard YouTube License, CC-BY