BILD 3 Chapter 22

BILD 3 Chapter 22 - Chapter 22: Descent with Modification...

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Chapter 22: Descent with Modification Natural Selection: A population can change over generations if individuals that possess certain heritable traits leave more offspring than other individuals. Evolutionary Adaptation: An accumulation of inherited characteristics that enhance organisms’ ability to survive and reproduce in specific environment. Evolution: A change over time in the genetic composition of a population. Taxonomy: The branch of biology concerned with naming and classifying organisms. Fossils: Remains or traces of organisms from the past. Sedimentary Rocks: Formed from the sand and mud that settle to the bottom of seas, lakes, and marshes; where most fossils are found. Paleontology: The study of fossils; developed by Georges Cuvier. Catastrophism: Speculation that each boundary between strata represents a catastrophe that destroyed many species living at the time. Gradualism: The idea that profound change can take place through the cumulative effect of slow but continuous processes. Uniformitarianism: Charles Lyell’s proposal that the same geologic processes are operating
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This note was uploaded on 10/24/2008 for the course BILD 3 taught by Professor Wills during the Spring '07 term at UCSD.

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BILD 3 Chapter 22 - Chapter 22: Descent with Modification...

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