practice exam III 2008 - Practice Exam III Answers will be...

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Practice Exam III Answers will be posted on the course web page. 1. In the biological species concept of Ernst Mayr, what aspect of a population is critical to determining a species? a. physical appearance b. similar behavior patterns c. interbreeding capabilities d. polyploidy e. similar genotypes 2. Isolating mechanisms that take effect before or during fertilization are termed a. hybridizing. b. prezygotic. c. genetically divergent. d. postzygotic. e. persistent. 3. The primitive earth's atmosphere did NOT contain a. water vapor. b. free nitrogen. c. free hydrogen. d. free oxygen. e. inert gases. 4. Which of the following arose Frst? a. archaebacteria b. animals c. fungi d. plants e. protists 5. Which of the following characteristics is NOT true of ALL animal groups? a. multicellular b. organ systems c. heterotrophic d. motile e. sexual reproduction 6. Nematocysts are found only in a. cnidarians. b. roundworms.
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This note was uploaded on 04/07/2008 for the course BIOL 102 taught by Professor Storfer during the Spring '08 term at Washington State University .

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practice exam III 2008 - Practice Exam III Answers will be...

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