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Chapter 8 Semester Review
Terms in this set (31)
The question "Did we, as humans, have a responsibility to ban CFCs and protect the ozone layer?", is a matter of environmental theories.
False / Ethics
A(n) compound is a chemical substance with a given set properties that cannot be broken down into substances with other properties.
Because water molecules are polar, they tend to repel one another.
False / Adhere to or attract
Sometimes, an output of the system is also an input for the same system
Tectonic plates move apart from one another at convergent plate boundaries
False / Divergent
Producers are organisms, mainly animals, that must eat other organisms to obtain nutrients
False / Consumers
Lipids are polymers of amino acids that serve many functions in organisms, such as the production of bones, skin, and muscles.
False / Proteins
Oceans, polar ice caps, and groundwater would all be considered part of Earth's atmosphere
False / Hydrosphere
Water also enters the atmosphere by condensation, the release of water vapor by plants through their leaves.
False / Transpiration
The nutrients required in relatively large amounts are called micronutrients and include nitrogen, carbon, and phosphorous
False / Macronutrients
The phosphorus cycle keeps phosphorus availability naturally high.
False / Low
Decision makers commonly use a method called supply and demand in which they compare what they will sacrifice and gain by a specific action
False / cost-benefit analysis
All economics depend on the environment
In the United States, the strength of the environmental policy is constant from state to state
False / Different
The United Nations is a group of 27 member nations that can sign treaties and enact regulations that have the same authority as national laws in each member nation.
False / European Union
Green taxes are used widely in the United States.
False / Europe
A small town needs a new water supply tank . The individuals of the town cannot afford to purchase the tank, so the government funds it. This is an example of market failure.
Throughout its history, the United States government has maintained its approach to the relationship between the nations goals and the environment.
False / Reinvented
In the United States during the 1960's and 1970's , environmental policy began to move more toward the state and local level.
False / Federal
With the cap and trade approach to the environmental policy, a government body sets rules and threatens punishment for violations.
False / Command-and-control
In the United States anyone can draft a bill, but a member of a business has to introduce it and follow it until it is passed
False / The legislature
The community is the simplest level of organization that the ecologist studies.
False / The individual is the simplest level of organization that ecologists study.
A herd of mule deer living on a certain mountain and separated from other herds of mule deer represents a species
False / A herd of mule deer living on a certain mountain and separated from other herds of mule deer represents a population.
In a population in which most of the individuals are of pre- reproductive or reproductive age, the population is likely to increase quickly in the future.
At the end of an ice age, you would expect to see exponential growth of species as they colonize regions left uninhabited by glaciers.
The diagram above shows a clumped distribution pattern.
False / The diagram shows a random distribution.
The ecosystem is the most complex level of organization that an ecologist studies.
False/ The biosphere is the most complex level of organization studied by ecologists.
A forest fire that kills a large percentage of a pine beetle population is an example of a density dependent factor that limits population.
False / A forest fire that kills a large percentage of a pine beetle population is an example of a density independent factor that limits population.
You need to count the number of trees of a certain species within a 300 square kilometer area. Your best strategy for estimating the number of trees is sampling.
In year one of a study, there are 100 mice living in a field. In year two, there are 110. In year three, there are 121. In year four, there are 132. The mouse population is experiencing a logistic growth pattern.
False / The mouse population is experiencing an exponential growth pattern.
A dead tree is an example of a biotic factor in a forest ecosystem.
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