Sample questions - Multiple choice questions: Answers are...

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Multiple choice questions: Answers are in bold. If you wish to study without the answers, please select all text and unbold them before printing. 1. Who was the first person to use the term “ecologie” (oekologie)? a. Charles Darwin b. Theodosius Dobzhansky c. Ernst Haeckel d. Aristotle 2. Which of the following factors can be considered a biotic factor affecting the distribution and abundance of trees in a forest? a. Temperature b. Disturbance c. Herbivory d. Nutrients 3. Which of the following features defines the limits of an ecosystem? a. Size of the ecosystem b. Number of interactions c. Number of environmental factors d. Purpose of the study examining the ecosystem 4. Which of the following ecosystems would likely be particularly dynamic? a. One that experiences major seasonal changes in temperature and precipitation b. One that experiences consistently higher inputs of nutrients c. One that experiences very harsh conditions all year long d. One that is spread over a large spatial area 5. Which of the following conditions is required by heterotrophic organisms, but not required by autotrophic ones? a. Light b. Organic matter as source of nutrition c. Water d. Sulphide compounds 6. Which part of the hydrosphere contains the most water? a. The surface of the planet b. The rocks c. Living organisms d. The atmosphere 7. Which of the following studies is an example of applied ecology? a. One that examines the effects that dams have on survival of migrating salmon b. One that examines the impact of genetically modified crops on survival of monarch butterflies c. One that examines the effect of urbanization on the establishment of exotic species in forests d. All of the above 8. The replacement of T. latifolia by T. glauca in Cootes Paradise Marsh is an example of: Continue to next page 1
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a. Displacement of a native species that does not tolerate eutrophication as the marsh became more nutrient rich b. Displacement of a species that is less tolerant to deep water when the marsh became deeper over time c. Displacement of a non-native species that became outcompeted by a native species when the marsh became restored d. An inevitable outcome of biodiversity loss 9. A researcher randomly selected 25 tadpoles that had just emerged in each of 13 ponds, and then measured their duration at the tadpole stage. She also measured the mean temperature of the pond water while the tadpoles were developing. She then calculated the mean duration for each pond. The data are plotted below, with each circle representing the mean growth rate of the 25 tadpoles in each pond. Based on the following, which of the following statements is correct? mean duration of tadpole stage (d) water temperature ( ° C) a. Water temperature has no effect on the development time of tadpoles b. Tadpoles cannot detect changes in water temperature c. The rate of tadpole development is affected most by concentration of phosphorus in the
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This note was uploaded on 01/16/2012 for the course ECOLOGY bio 2f03 taught by Professor Cartwright during the Spring '11 term at McMaster University.

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Sample questions - Multiple choice questions: Answers are...

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