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Question
Sand is composed mostly of ____ and is used to make glass, bricks, and concrete for the construction of roads and buildings.
a. shells, skeletons, and other remains of dead aquatic organisms
b. aluminum
c. phosphate salts
d. silicon dioxide (SiO2)
e. calcium carbonate, or CaCO3
Answer
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Related questions
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a. two
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a. True
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a. True
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a. free market
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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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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.
a. disposable coffee cups
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c. glass bottles
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Q:
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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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Q:
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
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c. mimicry
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Q:
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a. interspecific competition
b. mutualism
c. parasitism
d. predation
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