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Chapter 19 - Environmental Biology - Test 4
1.
A global ecological system comprising all of earth s communities is known as __________.
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2.
Producers, consumers and decomposers are the _________ factor of ecosystem.
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3.
Organisms that directly feed on plants are called _______.
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4.
Bacteria and fungi that consume the bodies of dead organisms are called _______.
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5.
The different feeding levels of organisms in an ecosystem are called _______.
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6.
The feeding relationships among organisms at different trophic levels form a chain called ___________.
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7.
A net work of food chains is called ________.
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8.
An ecological _________ can show energy biomass or the number of organisms in a food web.
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9.
The conversion of ammonia to nitrates with the help of bacteria is known as ________.
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10.
An ecosystem is a self-sustaining system except for ________....
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11.
The interactions in which one type of individuals may obtain their food from other, but may or may not kill it are called ________.
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12.
Individuals of two species may develop an intimate, beneficial association called ________.
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13.
Competition which occurs among individuals within a population called _________.
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14.
Zooflagellates living in the guts of termites is an example of _________.
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15.
Ecology is the study of relationship of individuals with its environment.
1) True
2) False
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