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BIOL 1503 Ch 22

QuestionAnswer
Which scientist(s) displayed the idea that the earth is at least millions of years old and uniformitarianism? (geology) Hunton and Lyell
Which scientist(s) had the idea that a population can grow faster than food resources, therefore some species will be favored over others? Malthus
Which scientist(s) is/are credited with the ideas of extinction, the discovery of fossils, and that the older fossils are the less they look like modern-day ones? Cavier
What scientist is credited with the idea that species can change? Lamarck
What are the two main ideas of evolution? 1. Modern organisms are modifications of preexisting organisms 2. Change over time of the genetic composition of a population
What are the four main lines of evidence supporting the theory of evolution? 1. Direct observation 2. Homology 3. Fossil Record 4. Comparative Embryology
What are the subcategories of direct observation? 1. Case studies 2. Artificial selection
What are the subcategories of homology? 1. Comparative anatomy 2. Comparative embryology 3. Comparative biochemistry
What are Darwin's four postulates? 1. Individuals in a population vary in the traits they possess 2. Some trait differences are heritable 3. Survival and reproductive success vary among individuals in a population 4. Individuals with certain traits are more likely to survive/reproduce
What are the three broad observations explained by evolution? 1. The unity of life 2. The diversity of life 3. The ways organisms are suited to life in their environment
What is uniformitarianism? The idea that the same geologic forces are operating today that occurred in the past.
Which scientist(s) are credited with creating the binomial classification system and the idea that resemblances among different species reflect the pattern of their creation? Linnaeus
Which two key OBSERVATIONS supported Darwin's theory of descent with modification in natural populations? 1. Organisms within a population vary 2. All populations produce more offspring than can be supported by the environment, resulting in competition for survival
Created by: sc79
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