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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?
A
burning fossil fuels that produce air pollutants that contain nitrogen and sulfer
B
passing environmental protection laws
C
establishing reforestation programs in lumber areas
D
using pesticides to control insects on trees
2) HUman impact on the environment is often more dramatic than that of other species because humans have a greater
A
need of water
B
ability to alter the environment
C
need of food
D
ability to adapt to change
3) Deforestation would most immediately result in
A
depletion of ozone
B
disappearance of native species
C
industrialization of a region
D
global warming
4) Which statement best describes an ecosystem maintaining a state of appropriate equilibrium?
A
all the frog species in a South American rain forest become extinct
B
mice are released into a field ecosystem as food for a declining predator population
C
nutrients from decayed organisms are recycled in a forest ecosystem
D
a mutation spreads through a species of bacteria, making them unable to decompose wastes
5) In New York State, small farms that were abandoned many years ago have become hardwood forests. This is an example of
A
local deforestation
B
biotechnology
C
habitat loss
D
ecological succession
6) In order for an ecosystem to remain stable there must be
A
drastic modications to the environment
B
limited biodiversity
C
interrelationships and interdependencies among organisms
D
gradual changes in the climate
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
A
decomposers
B
predators
C
parasites
D
pathogens
8) a finite resource in the environment that keeps a population from steadily increasing is known as
A
dynamic equilibrium
B
ecology succession
C
a reproductive enzyme
D
a limiting factor
9) Which situation is most likely to lead to ecological succession?
A
Hunters are allowed to hunt wolves, with no limits, for one season
B
the amount of industrialization increased in an area, resulting in teh increased burning of fossil fuels
C
The fish population in a large lake remain the same for many years
D
A farmer who has planted corn for many years retires, and the field is left abandoned
10) Water pollution as a result of fertilizer runoff from farms is harmful because it initially
A
decreases the water temperature of streams and lakes
B
changes the chemical compostion of nearby streams and lakes
C
decreases teh amount of nutrient recycling in lakes
D
adds ozone to the atmosphere, increasing global temps.
*select an answer for all questions
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