En. Sciences Ch. 7 - Populations:
Characteristics and Issues Exam prep
Density-dependent limiting factors are those that become more effective as the density of the
population ____________ - correct answersincreases
Which of the following best describes the relationship between the state of economic development and
rate of population growth - correct answersthe greater the per capita income, the lower the population
growth rate
Which of the following is the correct form of the IPAT equation, which describes the relationship
between environmental impact (I), population size (P), affluence (A), and technology (T) - correct
answersI = P x A x T
The measure of the _______ required to provide the resources and absorb the wastes of a population is
called the ecological footprint - correct answersland area
Which of the following are reproductive strategies employed by K-strategists - correct answersHigh
parental care for offspring
Long life span
Large organisms
Which of the following is a reproductive strategy employed by r-strategists - correct answersshort life
spans
Which of the following is an implication of rapid overreproduction, as employed by r-strategists - correct
answersspecies that are not able to reproduce rapidly will be out-competed
Distinct cycles of which the following have been documented since the 1920s for many kinds of animals
living in Earth's northern regions - correct answerspopulation
Match each of the following comparisons between birth and death rates with the correct change in
population size - correct answersbirth rate is greater than the death rate = the size of a population is
increasing
birth rate is less than the death rate = the size of a population is decreasing
birth rate is equal to the death rate = the size of a population is not changing
Match each of the following limiting factors with one of the four broad categories of environmental
resistance - correct answersa given soil is deficient in essential plant nutrients = the availability of raw
materials
a late frost destroys a herbivore's food supply = the availability of energy
, a faulty aquarium filter results in all the fish dying = the accumulation of waste products
an algal bloom results in an oxygen-depleted pond and a fish die-off = interactions among organisms
Over time, populations have an inherent tendency to ___________ in size - correct answersincrease
Which of the following characterize the life history of typical r-strategists - correct answershigh infant
mortality rate
no degree of parental care
large number of offspring produced
carrying capacity independent
small body size
Which of the following are examples of an extrinsic limiting factor - correct answersloss of food supply
drought
severe winter
landslide
volcanic eruption
The term defined as the number of deaths in a population over a particular time period is ___________ -
correct answersmortality
The term sex ratio refers to the ______ numbers of males and females - correct answersrelative
Population density is the ______ - correct answersnumber of organisms per unit area
Which of the following are ways that two populations of the same species can differ? - correct
answersgenetics
density
age distribution
growth rates
spatial distribution
natality
Characteristics and Issues Exam prep
Density-dependent limiting factors are those that become more effective as the density of the
population ____________ - correct answersincreases
Which of the following best describes the relationship between the state of economic development and
rate of population growth - correct answersthe greater the per capita income, the lower the population
growth rate
Which of the following is the correct form of the IPAT equation, which describes the relationship
between environmental impact (I), population size (P), affluence (A), and technology (T) - correct
answersI = P x A x T
The measure of the _______ required to provide the resources and absorb the wastes of a population is
called the ecological footprint - correct answersland area
Which of the following are reproductive strategies employed by K-strategists - correct answersHigh
parental care for offspring
Long life span
Large organisms
Which of the following is a reproductive strategy employed by r-strategists - correct answersshort life
spans
Which of the following is an implication of rapid overreproduction, as employed by r-strategists - correct
answersspecies that are not able to reproduce rapidly will be out-competed
Distinct cycles of which the following have been documented since the 1920s for many kinds of animals
living in Earth's northern regions - correct answerspopulation
Match each of the following comparisons between birth and death rates with the correct change in
population size - correct answersbirth rate is greater than the death rate = the size of a population is
increasing
birth rate is less than the death rate = the size of a population is decreasing
birth rate is equal to the death rate = the size of a population is not changing
Match each of the following limiting factors with one of the four broad categories of environmental
resistance - correct answersa given soil is deficient in essential plant nutrients = the availability of raw
materials
a late frost destroys a herbivore's food supply = the availability of energy
, a faulty aquarium filter results in all the fish dying = the accumulation of waste products
an algal bloom results in an oxygen-depleted pond and a fish die-off = interactions among organisms
Over time, populations have an inherent tendency to ___________ in size - correct answersincrease
Which of the following characterize the life history of typical r-strategists - correct answershigh infant
mortality rate
no degree of parental care
large number of offspring produced
carrying capacity independent
small body size
Which of the following are examples of an extrinsic limiting factor - correct answersloss of food supply
drought
severe winter
landslide
volcanic eruption
The term defined as the number of deaths in a population over a particular time period is ___________ -
correct answersmortality
The term sex ratio refers to the ______ numbers of males and females - correct answersrelative
Population density is the ______ - correct answersnumber of organisms per unit area
Which of the following are ways that two populations of the same species can differ? - correct
answersgenetics
density
age distribution
growth rates
spatial distribution
natality
