Biology 3T Classes 19, 21
Mayr, “One Long Argument”, chapters 1-4, 6
Post your answers to these questions on Blackboard before Class 19
Chapter 1
• What did you find out about Darwin in this chapter?
• Darwin believed that all life had a common origin. His areas of interest and expertise extended beyond evolution, from animal psychology to the study of barnacles.
• Whose ideas influenced Darwin?
• He was greatly influenced by Charles Lyell.
• Why did it take so long for Darwin to publish “Origin”, and what finally prompted its publication in 1859?
• He was more focused on continuing his graduate courses for researching barnacles, which proved to be great experiences in preparation of completing his book.
• What was Darwin’s
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• What is speciation?
• The emergence of a new, reproductively isolated population.
• How does speciation occur? Is there more than one mechanism for speciation?
Chapter 4
• What are Darwin’s 5 theories of his evolutionary paradigm?
• 1- “evolution as such” (the world is not constant), 2- “common descent”, 3- “multiplication of species”, 4- “gradualism”, 5- “natural selection”.
• What were the beliefs that Darwin’s theories challenged?
• 1- Belief in a constant world. 2- Belief in a created world. 3- Belief in a world designed by a wise and benign Creator. 4- Belief in the unique position of man in the creation. 5- Belief in the philosophy of essentialism. 6- Belief in an interpretation of the casual processes of nature as they had been elaborated by the physicists. 7- Belief in "final causes"
• What were the external factors that influenced the acceptance of Darwin’s theories?
• Socioeconomic and ideological factors
• What is “population thinking” and how did that differ from essentialism?
• It emphasized the role of the individual in evolution.
• What influenced Darwin’s move toward gradualism?
• His concept of variational evolution.
Chapter