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Review ECOLOGY

Test Description: Ecology and human impact

Instructions: Answer all questions to get your test result.

1) Which uhman activity has probably contribuated most to the acidification of teh lakes inteh Adirondacks?

Aestablishing reforestation programs in lumber areas Bburning fossil fuels that produce air pollutants that contain nitrogen and sulfer Cusing pesticides to control insects on trees Dpassing environmental protection laws

2) HUman impact on the environment is often more dramatic than that of other species because humans have a greater

Aneed of food Bability to adapt to change Cneed of water Dability to alter the environment

3) Deforestation would most immediately result in

Aglobal warming Bdisappearance of native species Cdepletion of ozone Dindustrialization of a region

4) Which statement best describes an ecosystem maintaining a state of appropriate equilibrium?

Anutrients from decayed organisms are recycled in a forest ecosystem Ba mutation spreads through a species of bacteria, making them unable to decompose wastes Call the frog species in a South American rain forest become extinct Dmice are released into a field ecosystem as food for a declining predator population

5) In New York State, small farms that were abandoned many years ago have become hardwood forests. This is an example of

Alocal deforestation Bhabitat loss Cbiotechnology Decological succession

6) In order for an ecosystem to remain stable there must be

Alimited biodiversity Binterrelationships and interdependencies among organisms Cgradual changes in the climate Ddrastic modications to the environment

7) An ecosystem is self-sustaining as long as organisms have sufficiant quantities of energy, water, oxygen, and minerals. When organisms die, some of these materials are recycled back to plants in the ecosystem primariliy through the activity of

Aparasites Bpathogens Cpredators Ddecomposers

8) a finite resource in the environment that keeps a population from steadily increasing is known as

Aecology succession Bdynamic equilibrium Ca reproductive enzyme Da limiting factor

9) Which situation is most likely to lead to ecological succession?

AHunters are allowed to hunt wolves, with no limits, for one season BA farmer who has planted corn for many years retires, and the field is left abandoned Cthe amount of industrialization increased in an area, resulting in teh increased burning of fossil fuels DThe fish population in a large lake remain the same for many years

10) Water pollution as a result of fertilizer runoff from farms is harmful because it initially

Aadds ozone to the atmosphere, increasing global temps. Bdecreases teh amount of nutrient recycling in lakes Cchanges the chemical compostion of nearby streams and lakes Ddecreases the water temperature of streams and lakes

*select an answer for all questions

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