Affiliate Marketing Secrets

A interaction is which both species benefit is best described as
• commensalisms
• mutualism
• predation
• parasitism
The number of individuals in a given area or volume of a habitat is
• the population density
• the population growth
• the population birth rate
• the population size
In natural communities, some feedback mechanisms operate whenever populations change in size, they are
• density-dependent factors
• density-independent factors
• always intrinsic to the individuals of the community
• always extrinsic to the individuals of the community
A population that is growing exponentially in the absence of limiting factors can be illustrated accurately by a(n)
• S-shaped curve
• J-shaped curve
• Curve that terminates in a plateau phase
• Tolerance curve
During the spring, male prairie chickens gather in open grassy areas an shuffle in a dance with their wings drooped, head erect and tail feathers spread. The function of this dance is to
• frighten off smaller birds from the territory
• select the showiest females to mate with
• attract the attention of the females
• imprint the younger male birds
• teach courting behavior to younger male birds
The maximum rate of increase per individual under ideal conditions is called the
• biotic potential
• carrying capacity
• doubling time
• population size
Female insects often attract mates by releasing sex pheromones. This signal is
• visual
• acoustical
• tactile
• chemical
The maximum number of individuals of a population (or species) that a given environment can sustain indefinitely defines ___________.
• exponential growth
• the carrying capacity of the environment
• the doubling time of a population
• density-independent factors
Newly hatched goslings follow any large moving object to which they are exposed shortly after hatching; this is an example of
• homing behavior
• imprinting
• piloting
• migration
The number of individuals that contribute to a population’s gene pool is
• the population density
• the population growth
• the population birth rate
• the population size
A young toad flips its sticky-tipped tongue and captures a bumblebee that stings its tongue; in the future, the toad leaves the bumblebees alone. This is and examples of
• instinctive behavior
• a fixed reaction pattern
• altruistic
• learned behavior
A newly mated queen ant found an ant nest in an unoccupied patch of suitable habitat. Assuming that no disasters strike the nest, which of the following types of equation is likely to best describe its population growth?
• linear
• quadratic
• logarithmic
• logistic
• exponential
Which of the following is NOT characteristic of logistic growth?
• S-shaped curve
• Leveling off of growth as carrying capacity is reached
• Unrestricted growth
• Slow growth of a low-density population followed by rapid growth
The range of all factors that influence whether a species can obtain resources essential for survival and reproduction is called the __________ of a species.
• habitat
• niche
• carrying capacity
• ecosystem
Assuming the birth and death rate remain constant, in the equation G = rN, r is equal to
• the per capita rate
• the minus migration factor
• exponential growth
• the net reproduction per individual per unit of time
A one-way relationship in which one species benefits an the other is directly harmed is
• commensalisms
• competitive exclusion
• parasitism
• mutualism
Answes:BAABCADBBBDCCBDC

32. Wastes tend to accumulate in the environment as a population reaches the carrying capacity.
A) True
B) False
33.Regarding population dispersion patterns, which of the following is an inappropriate pairing?
A) randomly spaced — chance
B) evenly spaced — regular intervals
C) clumped — clusters
D) dispersive — randomly distributed
34.As a population reaches its carrying capacity, there is an increase in competition for
A) food.
B) shelter.
C) mates.
D) All of the above
35.Which of the following does not represent a population?
A) all the robins in Austin, Texas
B) all the grass frogs in the pond of Central Park, New York City
C) all the birds in Chicago, Illinois
D) all the earthworms in Yosemite National Park
36.An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
37.Because individuals in a population usually tend to produce more than one offspring,
A) populations tend to increase in size.
B) populations remain stable in size.
C) individuals tend to die quickly.
D) the number of individuals declines rapidly.
38.The movement of organisms into a given area from another area is called
A) immigration.
B) emigration.
C) population shift.
D) carrying capacity.
39.An organism’s niche includes its habitat.
A) True
B) False
40.When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
41.As resources in a population become less available, the population
A) declines rapidly.
B) increases slowly.
C) reaches carrying capacity.
D) enters a phase of exponential growth.
42.If a population grows larger than the carrying capacity of the environment, the
A) death rate may rise.
B) birthrate may rise.
C) death rate must fall.
D) birthrate must fall.
43.If the niches of two organisms overlap,
A) the organisms may have to compete directly.
B) the two organisms will always form a symbiotic relationship.
C) both organisms will disappear from the habitat.
D) one organism usually migrates to a new habitat.
44.In a logistic growth curve, exponential growth is the phase in which the population
A) reaches carrying capacity.
B) grows quickly.
C) growth begins to slow down.
D) growth stops.
45.What is happening in a population as it decreases?
A) The birthrate and the death rate remain the same.
B) The death rate becomes lower than the birthrate.
C) The death rate stays the same and the birthrate increases.
D) The death rate becomes higher than the birthrate.
46.An organism’s niche is the sum of all its interactions in its environment, including interactions with other organisms.
A) True
B) False
47.Which would be least likely to be affected by a density-dependent limiting factor?
A) a small, scattered population
B) a population with a high birthrate
C) a large, dense population
D) a population with a high immigration rate
48.The various growth phases through which most populations go are represented on a(an)
A) logistic growth curve.
B) exponential growth curve.
C) normal curve.
D) population curve.
50.Which of the following is a density-independent limiting factor?
A) earthquake
B) disease
C) emigration
D) parasitism

32. Wastes tend to accumulate in the environment as a population reaches the carrying capacity.
A) True
B) False
33.Regarding population dispersion patterns, which of the following is an inappropriate pairing?
A) randomly spaced — chance
B) evenly spaced — regular intervals
C) clumped — clusters
D) dispersive — randomly distributed
34.As a population reaches its carrying capacity, there is an increase in competition for
A) food.
B) shelter.
C) mates.
D) All of the above
35.Which of the following does not represent a population?
A) all the robins in Austin, Texas
B) all the grass frogs in the pond of Central Park, New York City
C) all the birds in Chicago, Illinois
D) all the earthworms in Yosemite National Park
36.An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
37.Because individuals in a population usually tend to produce more than one offspring,
A) populations tend to increase in size.
B) populations remain stable in size.
C) individuals tend to die quickly.
D) the number of individuals declines rapidly.
38.The movement of organisms into a given area from another area is called
A) immigration.
B) emigration.
C) population shift.
D) carrying capacity.
39.An organism’s niche includes its habitat.
A) True
B) False
40.When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
41.As resources in a population become less available, the population
A) declines rapidly.
B) increases slowly.
C) reaches carrying capacity.
D) enters a phase of exponential growth.
42.If a population grows larger than the carrying capacity of the environment, the
A) death rate may rise.
B) birthrate may rise.
C) death rate must fall.
D) birthrate must fall.
43.If the niches of two organisms overlap,
A) the organisms may have to compete directly.
B) the two organisms will always form a symbiotic relationship.
C) both organisms will disappear from the habitat.
D) one organism usually migrates to a new habitat.
44.In a logistic growth curve, exponential growth is the phase in which the population
A) reaches carrying capacity.
B) grows quickly.
C) growth begins to slow down.
D) growth stops.
45.What is happening in a population as it decreases?
A) The birthrate and the death rate remain the same.
B) The death rate becomes lower than the birthrate.
C) The death rate stays the same and the birthrate increases.
D) The death rate becomes higher than the birthrate.
46.An organism’s niche is the sum of all its interactions in its environment, including interactions with other organisms.
A) True
B) False
47.Which would be least likely to be affected by a density-dependent limiting factor?
A) a small, scattered population
B) a population with a high birthrate
C) a large, dense population
D) a population with a high immigration rate
48.The various growth phases through which most populations go are represented on a(an)
A) logistic growth curve.
B) exponential growth curve.
C) normal curve.
D) population curve.
50.Which of the following is a density-independent limiting factor?
A) earthquake
B) disease
C) emigration
D) parasitism

32. Wastes tend to accumulate in the environment as a population reaches the carrying capacity.
A) True
B) False
33.Regarding population dispersion patterns, which of the following is an inappropriate pairing?
A) randomly spaced — chance
B) evenly spaced — regular intervals
C) clumped — clusters
D) dispersive — randomly distributed
34.As a population reaches its carrying capacity, there is an increase in competition for
A) food.
B) shelter.
C) mates.
D) All of the above
35.Which of the following does not represent a population?
A) all the robins in Austin, Texas
B) all the grass frogs in the pond of Central Park, New York City
C) all the birds in Chicago, Illinois
D) all the earthworms in Yosemite National Park
36.An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
37.Because individuals in a population usually tend to produce more than one offspring,
A) populations tend to increase in size.
B) populations remain stable in size.
C) individuals tend to die quickly.
D) the number of individuals declines rapidly.
38.The movement of organisms into a given area from another area is called
A) immigration.
B) emigration.
C) population shift.
D) carrying capacity.
39.An organism’s niche includes its habitat.
A) True
B) False
40.When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
41.As resources in a population become less available, the population
A) declines rapidly.
B) increases slowly.
C) reaches carrying capacity.
D) enters a phase of exponential growth.
42.If a population grows larger than the carrying capacity of the environment, the
A) death rate may rise.
B) birthrate may rise.
C) death rate must fall.
D) birthrate must fall.
43.If the niches of two organisms overlap,
A) the organisms may have to compete directly.
B) the two organisms will always form a symbiotic relationship.
C) both organisms will disappear from the habitat.
D) one organism usually migrates to a new habitat.
44.In a logistic growth curve, exponential growth is the phase in which the population
A) reaches carrying capacity.
B) grows quickly.
C) growth begins to slow down.
D) growth stops.
45.What is happening in a population as it decreases?
A) The birthrate and the death rate remain the same.
B) The death rate becomes lower than the birthrate.
C) The death rate stays the same and the birthrate increases.
D) The death rate becomes higher than the birthrate.
46.An organism’s niche is the sum of all its interactions in its environment, including interactions with other organisms.
A) True
B) False
47.Which would be least likely to be affected by a density-dependent limiting factor?
A) a small, scattered population
B) a population with a high birthrate
C) a large, dense population
D) a population with a high immigration rate
48.The various growth phases through which most populations go are represented on a(an)
A) logistic growth curve.
B) exponential growth curve.
C) normal curve.
D) population curve.
50.Which of the following is a density-independent limiting factor?
A) earthquake
B) disease
C) emigration
D) parasitism

32. Wastes tend to accumulate in the environment as a population reaches the carrying capacity.
A) True
B) False
33.Regarding population dispersion patterns, which of the following is an inappropriate pairing?
A) randomly spaced — chance
B) evenly spaced — regular intervals
C) clumped — clusters
D) dispersive — randomly distributed
34.As a population reaches its carrying capacity, there is an increase in competition for
A) food.
B) shelter.
C) mates.
D) All of the above
35.Which of the following does not represent a population?
A) all the robins in Austin, Texas
B) all the grass frogs in the pond of Central Park, New York City
C) all the birds in Chicago, Illinois
D) all the earthworms in Yosemite National Park
36.An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
37.Because individuals in a population usually tend to produce more than one offspring,
A) populations tend to increase in size.
B) populations remain stable in size.
C) individuals tend to die quickly.
D) the number of individuals declines rapidly.
38.The movement of organisms into a given area from another area is called
A) immigration.
B) emigration.
C) population shift.
D) carrying capacity.
39.An organism’s niche includes its habitat.
A) True
B) False
40.When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
41.As resources in a population become less available, the population
A) declines rapidly.
B) increases slowly.
C) reaches carrying capacity.
D) enters a phase of exponential growth.
42.If a population grows larger than the carrying capacity of the environment, the
A) death rate may rise.
B) birthrate may rise.
C) death rate must fall.
D) birthrate must fall.
43.If the niches of two organisms overlap,
A) the organisms may have to compete directly.
B) the two organisms will always form a symbiotic relationship.
C) both organisms will disappear from the habitat.
D) one organism usually migrates to a new habitat.
44.In a logistic growth curve, exponential growth is the phase in which the population
A) reaches carrying capacity.
B) grows quickly.
C) growth begins to slow down.
D) growth stops.
45.What is happening in a population as it decreases?
A) The birthrate and the death rate remain the same.
B) The death rate becomes lower than the birthrate.
C) The death rate stays the same and the birthrate increases.
D) The death rate becomes higher than the birthrate.
46.An organism’s niche is the sum of all its interactions in its environment, including interactions with other organisms.
A) True
B) False
47.Which would be least likely to be affected by a density-dependent limiting factor?
A) a small, scattered population
B) a population with a high birthrate
C) a large, dense population
D) a population with a high immigration rate
48.The various growth phases through which most populations go are represented on a(an)
A) logistic growth curve.
B) exponential growth curve.
C) normal curve.
D) population curve.
50.Which of the following is a density-independent limiting factor?
A) earthquake
B) disease
C) emigration
D) parasitism

32. Wastes tend to accumulate in the environment as a population reaches the carrying capacity.
A) True
B) False
33.Regarding population dispersion patterns, which of the following is an inappropriate pairing?
A) randomly spaced — chance
B) evenly spaced — regular intervals
C) clumped — clusters
D) dispersive — randomly distributed
34.As a population reaches its carrying capacity, there is an increase in competition for
A) food.
B) shelter.
C) mates.
D) All of the above
35.Which of the following does not represent a population?
A) all the robins in Austin, Texas
B) all the grass frogs in the pond of Central Park, New York City
C) all the birds in Chicago, Illinois
D) all the earthworms in Yosemite National Park
36.An organism’s niche includes
A) what it eats.
B) where it eats.
C) when it eats.
D) All of the above
37.Because individuals in a population usually tend to produce more than one offspring,
A) populations tend to increase in size.
B) populations remain stable in size.
C) individuals tend to die quickly.
D) the number of individuals declines rapidly.
38.The movement of organisms into a given area from another area is called
A) immigration.
B) emigration.
C) population shift.
D) carrying capacity.
39.An organism’s niche includes its habitat.
A) True
B) False
40.When two species compete, the niche that each species ultimately occupies is its
A) competitive niche.
B) realized niche.
C) fundamental niche.
D) exclusive niche.
41.As resources in a population become less available, the population
A) declines rapidly.
B) increases slowly.
C) reaches carrying capacity.
D) enters a phase of exponential growth.
42.If a population grows larger than the carrying capacity of the environment, the
A) death rate may rise.
B) birthrate may rise.
C) death rate must fall.
D) birthrate must fall.
43.If the niches of two organisms overlap,
A) the organisms may have to compete directly.
B) the two organisms will always form a symbiotic relationship.
C) both organisms will disappear from the habitat.
D) one organism usually migrates to a new habitat.
44.In a logistic growth curve, exponential growth is the phase in which the population
A) reaches carrying capacity.
B) grows quickly.
C) growth begins to slow down.
D) growth stops.
45.What is happening in a population as it decreases?
A) The birthrate and the death rate remain the same.
B) The death rate becomes lower than the birthrate.
C) The death rate stays the same and the birthrate increases.
D) The death rate becomes higher than the birthrate.
46.An organism’s niche is the sum of all its interactions in its environment, including interactions with other organisms.
A) True
B) False
47.Which would be least likely to be affected by a density-dependent limiting factor?
A) a small, scattered population
B) a population with a high birthrate
C) a large, dense population
D) a population with a high immigration rate
48.The various growth phases through which most populations go are represented on a(an)
A) logistic growth curve.
B) exponential growth curve.
C) normal curve.
D) population curve.
50.Which of the following is a density-independent limiting factor?
A) earthquake
B) disease
C) emigration
D) parasitism