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Biology - Ecology Chapter 6 Quiz
Test Description: Chapter 6
Instructions: Answer all questions to get your test result.
1) An introduced or invasive species can drive a natural species to extinction.
A
True
B
False
2) The main cause of the thinning ozone layer is global warming.
A
False
B
True
3) Acidic gasses are released into the air by combustion processes such as the burning of fossil fuels.
A
True
B
False
4) Biodiversity is important to humans because we are part of it and dependent on it for our own survival.
A
True
B
False
5) One of the values of biological magnification is its potential as a source of material that is beneficial to humans.
A
True
B
False
6) An increase in the earth's average temperature from the buildup of carbon dioxide and other gases in the atmosphere is called
A
ozone depletion
B
global warming/climate change
C
particulate dispersal
D
the greenhouse effect
7) Biodiversity is valuable in the biosphere because it
A
is the biological life support system for our planet
B
tells us about many other species
C
gives us interesting things to look at
D
provides humans with resistance to disease
8) All of the following are threats to biodiversity EXCEPT
A
habitat fragmentation
B
invasive species
C
species preservation
D
biological magnification of toxic compounds
9) What would be the most likely effect of an increase in the use of CFC's?
A
there would be no effect on ozone in the atmosphere
B
The ozone holes would get larger
C
the ozone layer would disappear
D
the ozone holes would get smaller
10) Plants and animals that have migrated to places where they are not native are called
A
All of these
B
Invasive species
C
exotic species
D
introduced species
11) One of the greatest threats to biological diversity is
A
monoculture
B
old growth forests
C
habitat destruction
D
ozone depletion
12) An endangered species is
A
a dangerous predator
B
all organisms at the top of the food chain
C
a diseased animal
D
a group of organisms near extinction
13) Biodiversity is important to human society because it
A
all of these
B
decrease organisms resistance to disease
C
cause cancer
D
damage eyes
14) Overexposure to UV radiation can
A
provides foods and goods
B
all of these
C
is a natural resource
D
provides medicines
15) The number of different species in the biosphere is called
A
genetic diversity
B
ecosystem diversity
C
species diversity
D
biodiversity
16) The major cause of ozone depletion is
A
CFC's
B
nitric acid
C
ultraviolet light
D
sulfuric acid
17) The sum total of the genetically-based variety of living organisms in the biosphere is called
A
conservative biology
B
biodiversity
C
species diversity
D
sustainable use
*select an answer for all questions
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