Introduction - Biological Evolution: An Introduction NATS...

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NATS 1690 - Biological Evolution Intoduction 1 Biological Evolution: An Introduction
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NATS 1690 - Biological Evolution Intoduction 2 References Custom Textbook – An Introduction to Biological Evolution, 2009 First chapter in text, starting on page 1
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NATS 1690 - Biological Evolution Intoduction 3 Lecture Outline The Central Idea in Biology Key Principles
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NATS 1690 - Biological Evolution Intoduction 4 Evolution - The Central Idea in Biology “Nothing in biology makes sense except in the light of evolution” (Theodosius Dobzhansky, 1900 – 1975), Russian geneticist) Because of its ability to explain the origin of Life’s Unity and Diversity The whole variety of life on Earth - contradiction striking similarities across all life amazing diversity of that life
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NATS 1690 - Biological Evolution Intoduction 5 An example… 3 rain forest orchids Variations on a common floral theme Each has a liplike petal Helps to attract pollinating insects Provides a landing platform for the pollinators Each looks different Attracts different pollinators
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NATS 1690 - Biological Evolution Intoduction 6 BIOLOGICAL EVOLUTION is the process that explains how organisms change over time Deals with a specific change through time i.e., the change in the frequencies of different “genes”
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This note was uploaded on 11/16/2010 for the course NATURAL SC NATS 1505 taught by Professor Isley during the Spring '10 term at Columbia State Community College.

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Introduction - Biological Evolution: An Introduction NATS...

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