Phys A L1

Phys A L1 - 4/10/2008 Physical Anthropology: Lecture 1...

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5/11/2009 Physical Anthropology: Lecture 1 (Chapter 1) I. Why Study Evolution A. Every species on this planet has arisen through the same evolutionary process 1. Morphology, physiology, behavior B. Sophistication and diversity of organic life C. Human traits characterize evolution 1. Group size, body size, brain size, longevity D. Adaptation: accumulation of traits that increases and organisms fitness (ability to survive and produce) resulting in natural selection 1. Adjusts to environmental conditions 2. Modification pliability and ability E. Eye 1. Light enters the cornea passes the diaphragm (iris) and regulates light passes through the lens and projects the design on the retina 2. Spherical Gradient Lens: sharp image projects over a full 180 visual field, short focal length, high light gathering power 3. Terrestrial animals can’t use design, refraction of light from the air to the air to the cornea, thus constraining the design of the remaining elements 4. Small accumulative changes can fairly rapidly result in a change in eye
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This note was uploaded on 04/08/2008 for the course ANTH 5 taught by Professor Gaulin during the Fall '07 term at UCSB.

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Phys A L1 - 4/10/2008 Physical Anthropology: Lecture 1...

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