CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 36, Problem 9TYK
According to data on ecological footprints,
a. the
b. Earth’s resources are sufficient to sustain future generations at current levels of consumption.
c. the ecological footprint of the United States is more than twice the world average.
d. nations with the largest ecological footprints have the fastest
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The carrying capacity (K) is the maximum population size that can be supported or sustained by a given environment. Which of the following statements about the carrying capacity is NOT true?
Select one:
a. We can think of K as some "average" value that a given environment can support.
b. Environmental fluctuations cause the carrying capacity to fluctuate over time.
c. Once a population reaches its carrying capacity, the size of the population remains constant.
d. When a population overshoots K, individuals die due to lack of resources.
As a population’s size increases toward the ecosystem’s carrying capacity,a. environmental resistance increases.b. the rate of population growth slows.c. the death rate increases.d. All of the above are correct.
Some people believe our most important goal should be to sharply reduce the rate of population growth in developing countries where 97% of the world’s population growth is expected to take place. Others argue that the most serious environmental problems stem from high levels of resource consumption per person in developed countries, which use 88% of the world’s resources and have much larger ecological footprints per person than do developing countries. What is your view on this issue? Explain
Chapter 36 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 36 - Use this graph of the idealized exponential and...Ch. 36 - The graph below shows the demographic transition...Ch. 36 - Prob. 3TYKCh. 36 - To figure out the human population density of your...Ch. 36 - The term (K N)/K a. is the carrying capacity for...Ch. 36 - With regard to its rate of growth, a population...Ch. 36 - Which of the following represents a demographic...Ch. 36 - Skyrocketing growth of the human population...Ch. 36 - According to data on ecological footprints, a. the...Ch. 36 - What are some factors that might have a...
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- A population will most likely deplete the resources of its environment if the population . A. grows beyond carrying capacity B. must share resources with many other species C. moves frequently from one habitat to another D. has a low reproductive potentialarrow_forwardWhich of the following statements best represents the productivityhypothesis regarding species richness?a. The larger the area, the greater the number of species that will befound there.b. Temperate regions have a lower species richness due to the lack oftime available for migration after the last Ice Age.c. The number of species in a particular community is directly relatedto the amount of available energy.d. As invertebrate productivity increases, species richness will increase.e. Species richness is not related to primary productivity.arrow_forwardThe Burmese Python, an invasive species, has been introduced to the Florida Everglades, largely through release by owners who acquired the snakes from exotic pet traders. Though the Everglades are protected, pythons as predators can not be easily controlled. What can be concluded about the effect of the python population on the biodiversity of the Everglades? A. Since the Everglades are protected, python control is limited under laws that protect species in the Everglades. B. Since the python population is growing, it will eventually become a native species and will increase biodiversity. C. Since pythons prey on many species in the Everglades, resources will be more available for surviving species and fewer will be considered endangered. D. Since pythons have no predators, they are responsible for decreasing mammal population and are a greater threat to biodiversity.arrow_forward
- In the following food chain, what biomass of phytoplankton will have been required to produce a 1 kg of big fish? Assume a typical figure for ecological efficiency. Phytoplankton eaten by Zooplankton eaten by Small fish eaten by Big fish A. 10 kg B. 10000 kg (10 metric tons) C. 100000 kg (100 metric tons) D. 100 kg E. 1000 kg (1 metric ton)arrow_forwardIf the animal population increased, the amount of atmospheric carbon would: A. increase B.decrease C.stay the samearrow_forwardExponential growth often occurs whena. a population nears carrying capacity.b. a population exceeds carrying capacity.c. organisms invade a new habitat.d. the birth rate exceeds the death rate for a singlegeneration.arrow_forward
- How does the logistic growth model of population growth differ from the exponential growth model? A. The graph of the exponential model is S-shaped. B. The logistic growth model shows an unrestricted growth rate. C. The logistic growth model considers the environment's carrying capacity. D. The exponential growth model shows a restricted growth rate.arrow_forwardThe point at which a population has reached the limit for which an area can support is known as… Select one: A. The upper limit B. The carrying capacity C. A die back D. The laws of population growth E. Environmental push backarrow_forwardInplants, “self-thinning” refers to reduction in:a.the biomass of an individual in response to competition.b.the total biomass of a population in response to competition.c.both population density and population biomass in response tocompetition.d.population density in response to competition, as population biomassincreases.e.population density due to grazing by herbivores.arrow_forward
- Maximum population an area can sustain A. Arithmetical Growth B. Carrying Capacity C. Intrinsic Rate of Growth D. Exponentialarrow_forwardAssume a new herbivore is added to Isle Royale that is not a prey for wolves. Predict the effect of this introduction on: a. the populations of trees b. the moose population C. the wolf populationarrow_forwardAccording to the competitive exclusion principle,a. one species is always more competitive than another for a particular food source.b. competition excludes multiple species from using the same food source.c. no two species can occupy the same niche at the same time.d. competition limits the reproductive capacity of species.arrow_forward
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