ecology quiz 4 - ECBAEBACEA 1. (Points: 1) Which of the...

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ECBAEBACEA 1. (Points: 1) Which of the following statements about ecotypes is false? a. They are populations with adaptations to unique environments. b. They can be responses to abiotic factors. c. They can be responses to biotic factors. d. With sufficient divergence over the course of time, they can become separate species. e. All of the above are true. Save Answer 2. (Points: 1) Nearly all metabolically active multicellular organisms face an extreme upper limit of about _______; the extreme lower limit for organismal function is reached at about _______, the temperature at which cells freeze. a. 40øC; 0øC b. 40øC; 3øC c. 50øC; ?3øC d. 50øC; 0øC e. 60øC; ?3øC Save Answer 3. (Points: 1) Plants can adjust leaf temperature by controlling the process of _______, which is accomplished via the opening and closing of stomates. a. latent heat transfer b. transpiration c. conduction d. infrared heat transfer e. convective heat transfer Save Answer 4. (Points: 1)
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This note was uploaded on 11/13/2009 for the course PCB PCB 3044 taught by Professor Woo during the Fall '09 term at University of Central Florida.

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ecology quiz 4 - ECBAEBACEA 1. (Points: 1) Which of the...

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