What makes the ecosystem of the Galapagos Island different than those found on large continentals? Upon what did Charles Darwin's original research on finches of the Galapagos Island focus? Describe the research Peter and Rosemary Grant conducted on the finches in the 1970's. Discuss the relationship between the finches' beak depth size and survival in terms of natural selection and fitness and the environmental causes that shaped the finch population of the islands.

From 1831 to 1836, Darwin traveled around the world, observing animals on different continents and islands. His visit to the Galapagos Islands convinced him that new species might arise from existing ones over time. The Galapagos Islands are uniquely located on both sides of the equator in both the Northern and Southern Hemispheres. The islands are situated at a point in the Pacific Ocean where three ocean currents which are the Humboldt Current, the Panama Flow and the Cromwell Current collide, creating a unique area in the sea where warm and varying degrees of cold water meet. Thus in the same place, three types of ecosystems occur terrestrial, coastal, and marine. Original research of Darwin's finches was based on their beak sizes which evolved due to the variety of food available on the island.

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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What makes the ecosystem of the Galapagos Island different than those found on large continentals?
Upon what did Charles Darwin's original research on finches of the Galapagos Island focus?
Describe the research Peter and Rosemary Grant conducted on the finches in the 1970's.
Discuss the relationship between the finches' beak depth size and survival in terms of natural selection and fitness and the environmental causes that shaped the finch population of the islands.

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