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Chapter Chapter 36: Population Dynamics
 
Pre-Test
 

1 .       Which of the following is a population? (36.1) [Hint]

 a spider and the fly it is about to eat
 all the plants that live near each other in a forest
 the earthworms that live in a grassland plus the earthworms that live in a forest
 all the coyotes on Earth
 all of the redwood trees that live in a forest
2 .       To determine the density of a rabbit population, you would need to know the number of rabbits and _____. (36.2) [Hint]

 the factors that limit population growth
 their birth rate
 the size of the area in which they live
 their population growth rate
 their pattern of dispersion
3 .       In wild populations, individuals most often show a _______ pattern of dispersion. (36.2) [Hint]

 random
 density-dependent
 equilibrial
 uniform
 clumped
4 .       In the models that describe population growth, r stands for _____. (36.4) [Hint]

 population density
 a time interval
 total number of individuals in the population
 an organism's maximum capacity to reproduce
 carrying capacity
5 .       The number of individuals that a particular habitat can support with no degradation of the habitat is called _____. (36.4) [Hint]

 biotic potential
 survivorship
 niche
 carrying capacity
 community
6 .       Which one of the following is NOT regarded as a density-dependent factor in the growth of natural populations? (36.5) [Hint]

 intraspecific competition
 interspecific competition
 emigration
 flooding
 predation
7 .       An oak tree produces thousands of acorns, but very few grow into mature oak trees. The oak tree exhibits a _______ survivorship curve. (36.3) [Hint]

 Type I
 Type II
 Type III
 Type I or II
 Type I or III
8 .       Which of the following is the most accurate comment on the Earth's carrying capacity for people? (36.9) [Hint]

 K is smaller now than it was a thousand years ago.
 The human population is still a long way from K.
 Our technology has allowed us to keep increasing K.
 When it comes to humans, the concept of K is irrelevant.
 The human population has already exceeded K.
9 .       Human population growth __________. (36.9) [Hint]

 has reached carrying capacity
 will not be stopped by environmental resistance
 has an S-shaped curve
 is currently in experiencing the Allee effect
 is currently exponential
10 .       A broad-based pyramid-shaped age structure is characteristic of a population that is _____. (36.10) [Hint]

 growing rapidly
 at carrying capacity
 stable
 limited by density-dependent factors
 shrinking