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| 1 | |
If a slice of a pie is used as an analogy for an ecosystem, then _____ could be an analogy for the biosphere. |
| | A) | the pie crust |
| | B) | the plate on which the pie is served |
| | C) | the whole pie |
| | D) | the pie filling |
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| 2 | |
All the silver maples in a given area make up a(n) _____. |
| | A) | population |
| | B) | community |
| | C) | ecosystem |
| | D) | biosphere |
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| 3 | |
Silver maples, red oaks, red wolves, deer, robins, blue jays, a fresh water stream, river otters, black rat snakes, various soil bacteria and fungi, loamy soil, and lots of rain in the spring could describe a(n) _____. |
| | A) | population |
| | B) | community |
| | C) | ecosystem |
| | D) | biosphere |
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| 4 | |
Ecology is the study of _____. |
| | A) | animal structures and functions of those structures |
| | B) | how organisms adapt to a changing environment |
| | C) | the interactions between organisms and the physical environment |
| | D) | how living things are organized and classified |
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| 5 | |
Modern ecology seeks to _____. |
| | A) | describe the interactions between organisms and the physical environment |
| | B) | develop models that explain and predict the distribution and abundance of organisms |
| | C) | analyze levels of organization and develop models and hypotheses that can be tested |
| | D) | All of these |
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| 6 | |
Most populations are distributed _____. |
| | A) | uniformly |
| | B) | randomly |
| | C) | in clumps |
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| 7 | |
When ecologists study the abiotic components of the environment, they are studying _____. |
| | A) | all organisms |
| | B) | all predators |
| | C) | soil, water, and weather |
| | D) | all organisms, soil, water, and weather |
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| 8 | |
Ecology and _____ are closely intertwined because ecological interactions act as selective agents. |
| | A) | bioengineering |
| | B) | taxonomy |
| | C) | evolution |
| | D) | pathology |
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| 9 | |
The distribution of the population in the United States would be best described as _____. |
| | A) | random |
| | B) | uniform |
| | C) | clumped |
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| 10 | |
To determine the intrinsic rate of natural increase, it is necessary to consider _____. |
| | A) | the rate of immigration |
| | B) | the rate of emigration |
| | C) | the death rate |
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| 11 | |
Populations increase in size when _____. |
| | A) | the birth rate exceeds the death rate |
| | B) | emigration exceeds immigration |
| | C) | mortality exceeds natality |
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| 12 | |
Organisms that have only a single reproductive event in their lifetime _____. |
| | A) | produce offspring that survive dryness and/or cold |
| | B) | expend all their energy in reproduction and then die |
| | C) | are members of populations that have discrete patterns of growth |
| | D) | All of these |
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| 13 | |
Populations are prevented from reaching their biotic potential by _____. |
| | A) | a limited supply of food |
| | B) | an accumulation of waste products |
| | C) | predation |
| | D) | All of these |
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| 14 | |
During the stable equilibrium phase of a logistic growth curve, _____. |
| | A) | growth is slow |
| | B) | growth is accelerating |
| | C) | there is little if any growth |
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| 15 | |
The maximum number of individuals of a given species that can be supported by a given area on a sustained basis is known as _____. |
| | A) | biotic potential |
| | B) | carrying capacity |
| | C) | exponential growth |
| | D) | environmental resistance |
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| 16 | |
Non-native species like kudzu, zebra mussels, and nutria experience _____ outside their native area due to a lack of natural predators and their ability to compete more successfully than native species for resources. |
| | A) | environmental resistance |
| | B) | extinction |
| | C) | resource partitioning |
| | D) | exponential growth |
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| 17 | |
The human population has a _____ pattern of growth. |
| | A) | logistic |
| | B) | exponential |
| | C) | None of these |
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| 18 | |
K-strategists _____. |
| | A) | provide little or no care for their offspring |
| | B) | require large ranges |
| | C) | easily colonize new habitats |
| | D) | adapt easily when their normal way of life is destroyed |
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| 19 | |
Which of the following is a density-dependent factor that regulates population size? |
| | A) | Competition |
| | B) | Drought |
| | C) | Accidental fire |
| | D) | Earthquake |
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| 20 | |
Population size and growth rates can be influenced by intrinsic factors such as _____. |
| | A) | dominance hierarchies |
| | B) | emigration |
| | C) | territoriality |
| | D) | All of these |
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