Chapter 22-1 - L a kshmi Srinivasan A6.5 Chapter 22 Descent...

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Lakshmi Srinivasan A6.5 Chapter 22 Descent with Modification: A Darwinian View of Life 3 key observations about life 1. Ways in which organisms are suited for life in their environments. 2. Shared characteristics of life. 3. Rich diversity of life. Evolution 1. Descent with modification. 2. 2. Descendants of ancestral species. 3. Different from present day species. Evolution – 2 types 1. Pattern – raw facts observed in nature. 2. Process – mechanisms that produce the patterns. Scala Naturae and classification of species: 1. Aristotle: a. Fixed species. b. Affinities among organisms. c. Scala naturae.
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2. Carolus Linnaeus: a. Binomial system b. Resemblance among species is due to pattern of their creation. Ideas about change over time. 1. Darwin – fossils, sedimentary rocks, strata. 2. Georger Cuvier – paleontology, catastrophism. 3. James Hutton – gradual mechanisms. 4.
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This note was uploaded on 01/25/2011 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Institute of Technology.

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Chapter 22-1 - L a kshmi Srinivasan A6.5 Chapter 22 Descent...

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