CAMPBELL BIOLOGY PACKAGE >UTOLEDO CUST
15th Edition
ISBN: 9781269912303
Author: Reece
Publisher: PEARSON C
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Chapter 53, Problem 1TYU
Population ecologists follow the fate of same-age cohorts to
- (A) determine a population's
carrying capacity . - (B) determine the birth rate and death rate of each group in a population.
- (C) determine if a population is regulated by density-dependent processes.
(L)) determine the factors that affect the
size of a population .
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The observation that members of a population are uniformlydistributed suggests that(A) resources are distributed unevenly.(B) the members of the population are competing for access toa resource.(C) the members of the population are neither attracted to norrepelled by one another.(D) the density of the population is low
1.) At approximately what year did the human population enter an exponential growth phase?
2.) Prior to that time, what was the approximate carrying capacity of Earth?
3.) State three significant technological developments that have acted to increase the carrying capacity of Earth’s environment since that time.
4.) Provide two examples of density-dependent factors that are contributing to or have the potential to contribute to environmental resistance in human populations.
Which of the following is true of a population approaching its carrying capacity?
a) The population’s emigration is greater than its immigration.
b) The population has access to unlimited resources.
c) Intraspecific competition decreases.
d) The population’s rate of increase approaches zero.
Chapter 53 Solutions
CAMPBELL BIOLOGY PACKAGE >UTOLEDO CUST
Ch. 53.1 - DRAW IT Each female of a particular fish species...Ch. 53.1 - Prob. 2CCCh. 53.1 - Prob. 3CCCh. 53.2 - Explain why a constant per capita rate of growth...Ch. 53.2 - Prob. 2CCCh. 53.2 - Prob. 3CCCh. 53.3 - Explain why a population that fits the logistic...Ch. 53.3 - WHAT IF? Given the latitudinal differences in...Ch. 53.3 - Prob. 3CCCh. 53.4 - Prob. 1CC
Ch. 53.4 - Prob. 2CCCh. 53.4 - Prob. 3CCCh. 53.5 - Prob. 1CCCh. 53.5 - WHAT IF? Suppose you were studying a species that...Ch. 53.5 - Prob. 3CCCh. 53.6 - How does a human population's age structure affect...Ch. 53.6 - Prob. 2CCCh. 53.6 - Prob. 3CCCh. 53 - Gray whales (Eschrichtius robustus) gather each...Ch. 53 - Suppose one population has an r that is twice as...Ch. 53 - Prob. 53.3CRCh. 53 - Prob. 53.4CRCh. 53 - Density-dependent factors regulate population...Ch. 53 - The human population is no longer growing...Ch. 53 - Population ecologists follow the fate of same-age...Ch. 53 - A population's carrying capacity (A) may change as...Ch. 53 - Scientific study of the population cycles of the...Ch. 53 - Analyzing ecological footprints reveals that (A)...Ch. 53 - Prob. 5TYUCh. 53 - The observation that members of a population are...Ch. 53 - According to the logistic growth equation...Ch. 53 - Prob. 8TYUCh. 53 - During exponential growth, a population always (A)...Ch. 53 - Which of the following statements about human...Ch. 53 - Prob. 11TYUCh. 53 - Prob. 12TYUCh. 53 - Prob. 13TYUCh. 53 - Prob. 14TYUCh. 53 - WRITE ABOUT A THEME: INTERACTIONS In a short essay...Ch. 53 - SYNTHESIZE YOUR KNOWLEDGE Locusts (grasshoppers in...
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- A population’s carrying capacity(A) may change as environmental conditions change.(B) can be accurately calculated using the logistic growth model.(C) increases as the per capita population growth rate decreases.(D) can never be exceeded.arrow_forwardIn populations of unitary organisms, growth rates and rates of development are generally influenced by intraspecific competition. This essentially leads to density-dependent effects on the composition of a population. 1) Explain/discuss figure b (limpets) 2) Explain/discuss figure a (reindeers)arrow_forwardWhich of the following populations would be growing? a) Geometric rate (1) = 0.63 b) Exponential growth rate (r) = 0.63 c) Net reproductive rate (R0) = 0.63 d) All of the above populations are growingarrow_forward
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