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Question
The normally gradual change in species composition in a given area in response to changing environmental conditions is called ____.
a. background coevolution
b. intraspecific competition
c. inertia
d. ecological succession
e. commensalism
Answer
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Related questions
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Genes mutate, individuals are selected, and populations evolve.
a. True
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a. free market
b. market pricing structure
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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.
a. lobbying
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c. bribes
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In a market-based economic system, economic decisions about prices are controlled by ____.
a. supply and demand
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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
b. False
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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
b. False
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Natural, human, and manufactured capital are the three types of capital used in most economic systems.
a. True
b. False
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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.
a. disposable coffee cups
b. batteries
c. glass bottles
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If a carbon atom combines with oxygen atoms to form CO2, this would be described as ____.a. a physical changeb. a chemical changec. both a physical and chemical changed. first a physical change, but then it becomes a chemical changee. neither a physical change or a chemical change, but a scientific change
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____ are the fundamental structural and functional units of life.a. Ionsb. Atomsc. Compoundsd. Moleculese. Cells
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All organic compounds are characterized by the presence of ____.a. carbonb. hydrogenc. oxygend. nitrogene. phosphorus
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An acidic solution would have ____. a. more hydroxide ions than hydrogen ions and a pH greater than 7 b. more hydrogen ions than hydroxide ions and a pH greater than 7 c. more hydroxide ions than hydrogen ions and a pH less than 7 d. more hydroxide ions than hydrogen ions and a pH of 7 e. more hydrogen ions than hydroxide ions and a pH less than 7
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Clownfish usually live within sea anemones, whose tentacles sting and paralyze most fish that touch them. The clownfish, which are not harmed by the tentacles, gain protection from predators and feed on the waste matter left from the anemones meals. The clownfish protect the sea anemones from some of their predators and parasites. The relationship between clownfish and sea anemones is ____.
a. competition
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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 ____.
a. competition
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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 ____.
a. camouflage
b. chemical warfare
c. mimicry
d. flight mechanism
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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 ____.
a. interspecific competition
b. mutualism
c. parasitism
d. predation
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Sea otters play a role in maintaining the biodiversity of which ecosystem?
a. tidal pools
b. coastal kelp forests
c. coastal sandy beaches
d. open ocean areas
e. estuaries