AP Biology (Mader), 11th Edition

Chapter 45: Community and Ecosystem Ecology

Pre-Test

1
A community is _____.
A)all members of one species in a particular location
B)all autotrophs within the same environment
C)a collection of different species that interact with each other in a specific location
D)all the abiotic features of an environment
2
All of the factors affect a community's composition EXCEPT:
A)Climate
B)The supply of inorganic and organic nutrients
C)The amount of available space
D)Species richness
3
According to the model of island biogeography, an equilibrium in species diversity develops when _____.
A)the rate of immigration is equal to the rate of emigration
B)species immigration and species extinction rates are equal
C)an island is close to the mainland
D)a big island is surrounded by many small islands
4
Which of the following statements about islands is true?
A)The size of the island does not affect the number of species found on it.
B)A large island has a greater extinction rate than a small island.
C)An island close to the mainland will experience more immigration than an island far away.
D)The distance from the mainland does not affect community diversity.
5
_____ is when one living organism feeds on another.
A)Competition
B)Predation
C)Parasitism
D)Mimicry
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