Biology: The Dynamics of Life, California Edition

Chapter 2: Principles of Ecology

Principles of Ecology

1.
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Identify the abiotic factor labeled in the ecosystem shown in Figure 2-5.
A)butterfly
B)rock
C)mouse
D)tree
2.
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The organisms growing on the log in Figure 2-8 are ____?
A)autotrophs
B)producers
C)carnivores
D)decomposers
3.
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The group of animals in Figure 2-6 is an example of what?
A)ecosystem
B)population
C)community
D)biosphere
4.
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Where is the biosphere in Figure 2-4?
A)Earth’s crust
B)core
C)upper mantle
D)mantle
5.
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What type of cycle is depicted in Figure 2-10?
A)carbon
B)phosphorus
C)nitrogen
D)water
6.
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What type of ecosystem is shown in Figure 2-11?
A)population
B)terrestrial
C)acquatic
D)abiotic
7.
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Referring to Figure 2-1, suppose 10 000 units of energy are available at the level of the grasses. What is the total number of energy units lost by the time energy reaches the coyote?
A)9990 units
B)990 units
C)9900 units
D)90 units
8.
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In the energy pyramid shown in Figure 2-7, which level has the smallest number of organisms?
A)birds
B)fox
C)grasshoppers
D)grass
9.
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Which organism shown in the pyramid receives the highest percentage of energy from the Sun?
A)grass
B)birds
C)fox
D)grasshoppers
10.
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The organism shown in Figure 2-12 is involved in which type of symbiosis?
A)commensalism
B)parasitism
C)predatorism
D)mutualism
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