Question 1

Resource availability is the only density-dependent factor affecting a population.

Accepted Answer

A) True 
 B)False

Question 2

Explain root grafts in jack pine stands. How are they like altruism?

Accepted Answer

Neighbouring plants graft their roots to

Question 3

Competition among individuals of the same species is referred to as ________ competition.

Accepted Answer

The answer of Competition among individuals of the same species...

Question 4

Explain why high population density might stress an organism. Provide several examples of some of the negative impacts of stress on an organism.

Accepted Answer

High population density can stress an or

Question 5

Which statement is correct?

Accepted Answer

A) When a resource shortage brings about dispersal, it is usually the reproductive adults that are forced out. 
B) Dispersal rarely leads to the expansion of a population's range. 
C) Dispersal functions as an important mechanism regulating the growth of populations. 
D) Dispersal is one way to reduce the chance of inbreeding. 
A) When a resource shortage brings about dispersal, it is usually the reproductive adults that are forced out. 
B) Dispersal rarely leads to the expansion of a population's range. 
C) Dispersal functions as an important mechanism regulating the growth of populations. 
D) Dispersal is one way to reduce the chance of inbreeding.

Question 6

As intraspecific competition increases, the growth of individuals decreases.

Accepted Answer

A) True 
 B)False

Question 7

Within a social group of animals, resources are usually divided up evenly and peaceably, thus strengthening group cohesion.

Accepted Answer

A) True 
 B)False

Question 8

Territorial behaviour includes some form of advertisement, threat, and combat.

Accepted Answer

A) True 
 B)False

Question 9

As the density of a population increases, the rate of reproduction increases.

Accepted Answer

A) True 
 B)False

Question 10

In general, the size of an animal's territory

Accepted Answer

A) is smaller when food is abundant and concentrated. 
B) is larger when food is abundant and concentrated. 
C) is unrelated to animal body size. 
D) is unrelated to food availability. 
A) is smaller when food is abundant and concentrated. 
B) is larger when food is abundant and concentrated. 
C) is unrelated to animal body size. 
D) is unrelated to food availability.

Question 11

Among mammal species, the home range size is negatively correlated with body size.

Accepted Answer

A) True 
 B)False

Question 12

Density-independent population regulation

Accepted Answer

A) is usually catastrophic. 
B) primarily affects large populations. 
C) may involve disease transmission among individuals of the population. 
D) is the result of the competition for available resources. 
A) is usually catastrophic. 
B) primarily affects large populations. 
C) may involve disease transmission among individuals of the population. 
D) is the result of the competition for available resources.

Question 13

When a given area is saturated with territories, excluded individuals who lack a territory soon die of starvation.

Accepted Answer

A) True 
 B)False

Question 14

Factors that influence population growth that do not change systematically with the density of the population are called ________ factors.

Accepted Answer

The answer of Factors that influence population growth that do...

Question 15

Which of the following factors is most likely to be a density-independent regulator of population growth?

Accepted Answer

A) drought 
B) disease 
C) starvation 
D) parasites 
A) drought 
B) disease 
C) starvation 
D) parasites

Question 16

Competition for resources is a density-dependent factor affecting a population.

Accepted Answer

A) True 
 B)False

Question 17

Plants that capture space, may increase their fitness at the expense of others. This is known as

Accepted Answer

A) altruism. 
B) territoriality. 
C) pre-emption. 
D) self-thinning. 
A) altruism. 
B) territoriality. 
C) pre-emption. 
D) self-thinning.

Question 18

Give a specific example of how a density-independent factor affects a population. Explain why density-independent factors are less predictable in their effects than density-dependent factors.

Accepted Answer

A specific example of a density-independ

Question 19

The form of competition in which some competing individuals claim enough resources while denying others a share is called

Accepted Answer

A) scramble competition. 
B) contest competition. 
C) exploitation competition. 
D) interference competition. 
A) scramble competition. 
B) contest competition. 
C) exploitation competition. 
D) interference competition.

Question 20

Fecundity

Accepted Answer

A) is unrelated to population density. 
B) decreases as population density increases. 
C) increases as population density increases. 
D) decreases for females only as population density increases. 
A) is unrelated to population density. 
B) decreases as population density increases. 
C) increases as population density increases. 
D) decreases for females only as population density increases.

Exam 11: Intraspecific Population Regulation

Resource availability is the only density-dependent factor affecting a population.

Explain root grafts in jack pine stands. How are they like altruism?

Competition among individuals of the same species is referred to as ________ competition.

Explain why high population density might stress an organism. Provide several examples of some of the negative impacts of stress on an organism.

Which statement is correct?

As intraspecific competition increases, the growth of individuals decreases.

Within a social group of animals, resources are usually divided up evenly and peaceably, thus strengthening group cohesion.

Territorial behaviour includes some form of advertisement, threat, and combat.

As the density of a population increases, the rate of reproduction increases.

In general, the size of an animal's territory

Among mammal species, the home range size is negatively correlated with body size.

Density-independent population regulation

When a given area is saturated with territories, excluded individuals who lack a territory soon die of starvation.

Factors that influence population growth that do not change systematically with the density of the population are called ________ factors.

Which of the following factors is most likely to be a density-independent regulator of population growth?

Competition for resources is a density-dependent factor affecting a population.

Plants that capture space, may increase their fitness at the expense of others. This is known as

Give a specific example of how a density-independent factor affects a population. Explain why density-independent factors are less predictable in their effects than density-dependent factors.

The form of competition in which some competing individuals claim enough resources while denying others a share is called

Fecundity

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