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Question
When populations of two different species interact over a long period of time, changes in the gene pool of populations of one species can lead to changes in the gene pool of the other a process called commensalism.
a. True
b. False
Answer
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Related questions
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MatchingMatch the items listed below with the appropriate choice.a. interspecific competitionb. predationc. parasitismd. mutualisme. commensalismf. mimicryClownfish live amongst the stinging tentacles of sea anemone. They keep the sea anemone tentacles clean by eating the debris, and they gain protection from other animals by living in the tentacles.
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a. True
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a. free market
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d. genuine progress indicator
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The economically and politically powerful interests that receive perverse subsidies spend a lot of time and money on ____, thus shifting to non-perverse subsidies would be difficult.
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In a market-based economic system, economic decisions about prices are controlled by ____.
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Less than 10% of the U.S. public considers the environment to be one of the nations most pressing problems.
a. True
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Ecological economists consider natural capital to be important but not indispensable because they believe we can find substitutes for essentially any resource that we might deplete or degrade.
a. True
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Natural, human, and manufactured capital are the three types of capital used in most economic systems.
a. True
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Stewardship is based on an idea that nature exists for all species alike and our success depends on how well we manage the earth and nature.
a. True
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It can take 400 to 1,000 years to break down ____ that end up in landfills or the ocean.
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a. background coevolution
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A relationship in which one organism benefits by living on or in a member of another species, which is harmed by the interaction, best illustrates ____.
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You are an evolutionary entomologist. You have observed beetles that can raise their abdomens and give off a defensive chemical that generally repels predators. You discover a new species of beetle that raises its abdomen in a threatening way similar to the first species, but no defensive chemical is given off. You are most likely to characterize this defensive strategy as a form of ____.
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Hawks typically forage for their rodent prey species during the daytime. While owls may eat similar prey species, and live in the same area, they forage during the night. This is best described as an example of ____.
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c. parasitism
d. predation
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