2003 T3 Agrawal (22) - Code 22 03W page 1 Questions 1 to 26...

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Code 22 - 03W page 1 . Questions 1 to 26: Professor Agrawal 1. Which statement reported by Spiller and Agrawal (in the required reading) is FALSE ? a. Herbivore damage was higher on exposed islands than on protected islands. b. Following the hurricane, moth populations on exposed islands increased greatly, but did not increase on protected islands. c. Pruned shrubs produced larger leaves than control (undamaged) shrubs. d. Pruned shrubs had higher levels of chemical defense compared to control (undamaged) shrubs. e. Pruned shrubs had higher levels of nitrogen compared to control (undamaged) shrubs. 2. Which statement about the conservation of endangered species is FALSE ? a. Plants are the most threatened group of organisms in Canada. b. Canada has had a “Species at Risk Act” for 25 years. c. The government of Canada has spent over $25 million on the recovery of endangered species. d. The science of ecology can help to inform decisions about species conservation. e. Recovery teams consist of biologists who study the decline of species and implement plans for saving species from extinction. 3. Which statement about thermoregulation is FALSE ? a. Gigantotherms do not produce their own heat. b. Solar radiation is an important mechanism by which ectotherms thermoregulate. c. Some plants metabolize stored resources and produce heat. d. An ectothermic organism cannot be endothermic. e. A poikilothermic animal cannot be homeothermic. 4. Which statement is FALSE ? a. Lizards are ectothermic. b. Lizards in an open habitat can maintain a constant body temperature during the day time. c. Mice maintain a constant body temperature. d. The metabolic rate of lizards depends on environmental temperatures. e. At cool temperatures (0-10 o C) mice will have a low metabolic rate. 5. Which statement about populations is FALSE ? a. Outbreaks of the autumnal moth in northern Scandinavia occur on a 10-year cycle. b. Predation of sea turtle eggs may have a relatively small impact on future population sizes. c. The yeast populations in Prof. Agrawal’s pizza dough are increasing over the course of hours. d. Malthus predicted arithmetic growth of human populations. e. Outbreaks of the autumnal moth can transform the landscape from forest to tundra.
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Code 22 - 03W page 2 6. Which statement about the hierarchical framework of ecology is CORRECT ? a. The microenvironment of most organisms is defined by one square metre. b. Physiological ecology is focused on the interactions between different species. c. Community ecology builds on population ecology because it encompasses the study of populations of many species. d. Tree growth occurs at the same spatial scale as tree stand dynamics. e. Changes of leaf physiology, such as photosynthetic rate, that occur from seconds to minutes, do not represent an ecological process.
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2003 T3 Agrawal (22) - Code 22 03W page 1 Questions 1 to 26...

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