Term
| If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for the bird to use ? |
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Definition
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Term
| What kind of organism obtains energy only from producers ? |
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Definition
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Term
| Where would an Ecologist be least likely to go to study primary succession ? |
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Definition
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Term
| What kind of natural disaster helps some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth ? |
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Definition
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Term
| The energy consumed by organisms : |
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Definition
| can be stored in fat and sugar molecules. |
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Term
| The bacteria that live within the roots of a soybean plant are a critical part of the nitrogen cycle because they : |
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Definition
| change atmospheric nitrogen into a usable form. |
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Term
| Which of the following is an example of secondary succession ? |
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Definition
| growth of plants after a forest is destroyed by fire. |
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Term
| Which of the following is not a likely component of soil formed during primary succession ? |
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Definition
| cast-off parts of shrubs and trees. |
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Term
| Which of the following is responsible for making nitrogen in the atmosphere usable by living organisms ? |
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Definition
| nitrogen-fixing bacteria. |
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Term
| What type of vegetation would you expect to find on an abandoned farm that has remained undisturbed for 150 years ? |
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Definition
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Term
| What type of succession occurs after a natural process such as a volcanic eruption or flood ? |
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Definition
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Term
| Thick fur on deer is not an example of coevolution. Why ? |
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Definition
| because thick fur evolved in response to a cold climate, not in response to other organisms. |
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Term
| An example of a population is : |
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Definition
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Term
| The density of a population is ? |
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Definition
| the number of individuals per unit area. |
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Term
| The relationship between a Canadian Lynx and a Snowshoe Hare is an example of: |
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Definition
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Term
| Which of the following populations has a random dispersion ? |
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Definition
| solitary snakes in the desert. |
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Term
| If over a long period of time, each pair of adults in a population had only two offspring and the offspring lived to reproduce, the population would : |
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Definition
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Term
| Which of the following is not an example of exponential growth ? |
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Definition
| reindeer of the Pribilof Islands after eating most of the lichens. |
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Term
| Competition for food cannot occur : |
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Definition
| between animals from two different ecosystems. |
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Term
| Which of the following is a true statement about surface water : |
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Definition
| it makes up less than 1 percent of all water on Earth. |
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Term
| What is the relationship between groundwater and surface water ? |
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Definition
| surface water percolates through the soil to form groundwater. |
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Term
| How is fresh water used in industry ? |
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Definition
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Term
| The 1990 Oil Pollution Act requires that all : |
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Definition
| tankers in U.S. waterways be double-hulled by the year 2015. |
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Term
| When neighborhood residents noticed a large number of dead fish in a local creek, They traced the problem to a nearby gas station. It turned out that a tank of gasoline had developed a leak. This is an example of : |
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Definition
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Term
| Most large cities get water for households and industries from : |
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Definition
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Term
| What is an inexpensive solution to providing everyone with more fresh water to use ? |
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Definition
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Term
| Which of the following is not a true statement about the social and environmental impact of dams ? |
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Definition
| dams are built to resolve disputes between neighboring countries. |
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Term
| A true statement about aquafers is that : |
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Definition
| they are formed by underground rivers and leakage from deep lakes. |
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Term
| Which of the following is often used to remove poisonous gases from industrial emissions before they are released into the atmosphere ? |
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Definition
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Term
| Which of the following contributes most to acid precipitation ? |
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Definition
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Term
| As a lake becomes more acidic, fish are harmed not only by the acidity but also by substances that leach out of the soil into the water. Which of theses toxic substances is leached when conditions are acidic ? |
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Definition
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Term
| Most air pollution is produces by : |
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Definition
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Term
| A true statement about sulfur dioxides is that they are : |
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Definition
| involved in the formation of acid precipitation. |
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Term
| A true statement about carbon monoxide is that it : |
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Definition
| can lower the level of oxygen carried in the blood. |
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Term
| When the acidity of soil increases : |
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Definition
| some nutrients are dissolved and washed away. |
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Term
| Which of the following agricultural products requires the least amount of energy ? |
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Definition
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Term
| A true statement about nutritional requirements in humans is that : |
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Definition
| humans need to get eight essential amino acids from the proteins they eat. |
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Term
| All of the following factors can cause famines except : |
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Definition
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Term
| Pest populations that damage plants : |
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Definition
| become resistant to pesticides via natural selection. |
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Term
| Products obtained from livestock include : |
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Definition
| leather, wool, eggs, meat, and manure. |
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Term
| Which of the following produces the most solid waste ? |
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Definition
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Term
| Under the Superfund Act : |
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Definition
| the EPA may sue companies that dump hazardous waste illegally. |
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Term
| Some hazardous waste is disposed of by deep-well injection. This procedure : |
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Definition
| stores wastes in layers of dry rock below the water table. |
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Term
| Which of the following is not a requirement for a landfill built today ? |
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Definition
| it must be a specified distance from a city or other populated area. |
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Term
| A material is biodegradable if : |
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Definition
| it can be broken down by biological processes. |
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Term
| Which of the following is not true of the Law of The Sea ? |
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Definition
| it calls for monitoring the health of marine organisms. |
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Term
| An event that demonstrated the need for new soil conservation practices and policies was when : |
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Definition
| there was widespread drought and soil erosion in the 1930's. |
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Term
| What action allows individuals to affect environmental policy on all levels of government ? |
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Definition
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Term
| In general, sustainability is nore of a concern now than it was 100 years ago. Why ? |
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Definition
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Term
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Definition
| to influence governmental policies. |
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