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1 Natural selection will ultimately make a species A. B. C. D. E. More intelligent Physically bigger Better adapted to its environment More aggressive Less vulnerable to its predators Students type their answers here

2 Tolerance limits are _______ that limit a species' survival. A. B. C. D. E. Temperature ranges Any environmental conditions Population sizes Narrow salinity levels Undesirable toxin concentrations Students type their answers here

3 A species can withstand a wide range of p. H as an adult but the juveniles can only withstand a narrow range of p. H. The abiotic factor, p. H, would best be described as a A. B. C. D. E. Stress factor Intolerance factor Tolerance limit Critical factor Physical factor Students type their answers here

4 What would you label the range of temperature from 90� F to 94� F for this particular species? A. B. C. D. E. Zone of intolerance Zone of physiological stress Tolerance limit range Optimal range Range of tolerance Students type their answers here

5 The most common reason that introduced species negatively impact an environment is because they A. B. C. D. Are larger than native species Disrupt preexisting niches Are unusually efficient predators None of these is correct Students type their answers here

6 As ecological development proceeds, a biological community A. B. C. D. E. Gradually stagnates Becomes more diverse Goes through repeated secondary succession stages Goes through repeated primary succession stages Becomes less complex Students type their answers here

7 A climax community is one that A. B. C. D. E. Is relatively stable and long lasting Lasts forever Contains oaks or white spruce Is impervious to disruption Is adapted to periodic disruption Students type their answers here

8 A climax community is one that A. B. C. D. E. Is relatively stable and long lasting Lasts forever Contains oaks or white spruce Is impervious to disruption Is adapted to periodic disruption Students type their answers here

9 A viceroy butterfly that closely resembles the bad tasting monarch is an example of _____, and the example of beetles that look like stinging wasps is an example of _____. A. B. C. D. E. Batesian mimicry; Muellerian mimicry; Batesian mimicry Commensalism; symbiosis Students type their answers here

10 Predation influences evolution when A. Prey species develop defensive characteristics over generations B. An individual predator adapts and becomes more efficient in catching its prey C. Predators kill off all of their prey D. A population of predators develop defensive characteristics E. Prey species change their reproductive rate to match predation in the local ecosystem Students type their answers here

11 Which of the following is NOT a strategy for successfully avoiding interspecific competition? A. B. C. D. Eating fruit before it is ripe for other species Trees spreading seeds or offspring far and fast Producing substances that are toxic to competitors All of these are strategies for successful interspecific competition Students type their answers here

12 Resource partitioning tends to lead to a high degree of _______ in species. A. B. C. D. E. Specialization Evolution Convergent evolution Generalization Divergent evolution Students type their answers here

13 Evolution occurs as a result of A. The discovery of a desirable characteristic in a population B. An individual's physiological modification C. An environmental change that forces modification in a resident species D. Better survival or reproduction rates by individuals with a particular characteristic E. A population's physiological modification Students type their answers here

14 Cheetahs can run extremely fast because A. They need to outrun lions B. Their ancestors who were able to run fast had an advantage and passed those genes on to their offspring C. Over time, they gradually built up speed as they adapted to faster and faster prey species D. They are competing with stronger lions and hyenas for their food, so they need to be fast E. All of the options above Students type their answers here

15 There are usually many tolerance limits responsible for limiting the number and location of a species. However, some organisms have ______ that limit/limits their distribution. A. B. C. D. a specific critical factor other environmental conditions many factors nothing Students type their answers here

16 Populations can be critically limited by A. B. C. D. E. Available food Suitable shelter from the elements Available water Suitable shelter from predators Any of these, depending on the system

17 What would you label the range of temperature from 95� F to 96� F for this particular species in the scenario? A. B. C. D. E. Zone of intolerance Tolerance limit range Zone of physiological stress Optimal range Range of tolerance Students type their answers here

18 Some communities, such as grasslands, may never really reach F. E. Clements's concept of a climax stage because A. B. C. D. E. Ecological succession works too slowly There is no optimum community for these environments They are adapted to periodic disturbance Their environmental conditions are too unstable Primary succession is a slow process

19 Which of the following are pioneer species? A. B. C. D. E. Wood warblers Dandelions Starlings Lichens Humans

20 A "closed community" has a A. B. C. D. E. Narrow ecotone Gradual transition zone Wide ecotone Very small area Large core area Students type their answers here