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End of Chapter Quiz
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1
When the number of organisms remains more or less the same over time in the specific place where these organisms live, it is said that this population of organisms has reached the ___________ of that place.
A)dispersion
B)biotic potential
C)carrying capacity
D)population density
2
Which of the following is a density-dependent effect on population?
A)earthquake
B)increased competition for food
C)habitat destruction by humans
D)seasonal flooding
3
Which of the following traits is not a characteristic of an organism that has K-selected adaptations?
A)short life span
B)few offspring per breeding season
C)extensive parental care of offspring
D)low mortality rate
4
If the age structure of a population shows more older organisms than younger organisms, then the fecundity
A)will increase, and the mortality will decrease.
B)will decrease, and the mortality will increase.
C)and the mortality will be equal.
D)and the mortality will not change.
5
All the animals and plants that live in the same location make up a(n)
A)biome.
B)population.
C)ecosystem.
D)community.
6
For similar species to occupy the same space, their niches must be different in some way. One way for these species to both survive is
A)competitive exclusion.
B)interspecific competition.
C)resource partitioning.
D)intraspecific competition.
7
A relationship between two species where one species benefits and the other is neither hurt nor helped is known as
A)parasitism.
B)commensalism.
C)mutualism.
D)competition.
8
Predators can assist in maintaining the species diversity of an area by
A)increasing competitive exclusion between prey species.
B)decreasing competitive exclusion between prey species.
C)not affecting competitive exclusion between prey species.
D)decreasing resource partitioning between prey species.
9
The bright colors of poison-dart frogs and Gila monsters are examples of
A)aposematic coloration.
B)Mullerian mimicry.
C)cryptic coloration.
D)Batesian mimicry.
10
Succession that occurs on abandoned agricultural fields is best described as
A)coevolution.
B)primary succession.
C)secondary succession.
D)prairie succession.





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