Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

A plant grown at high density will produce ________ seeds than the same plant grown at low density.

Accepted Answer

The answer of A plant grown at high density will...

Question 3

The rate of aggressive interactions among individuals increases as population density increases.

Accepted Answer

A) True 
 B)False

Question 4

When extreme contest competition occurs within a population,

Accepted Answer

A) all individuals receive insufficient resources for survival and reproduction. 
B) local extinction may occur. 
C) only a portion of the population suffers. 
D) the growth rate of the population increases. 
A) all individuals receive insufficient resources for survival and reproduction. 
B) local extinction may occur. 
C) only a portion of the population suffers. 
D) the growth rate of the population increases.

Question 5

Fire is an example of a density-independent factor that affects the size of a population.

Accepted Answer

A) True 
 B)False

Question 6

Population density can affect the age at which an animal matures.

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

Social organization occurs only among invertebrate animals such as ants,bees,and termites.

Accepted Answer

A) True 
 B)False

Question 9

The carrying capacity refers to the

Accepted Answer

A) minimum amount of resources needed to sustain a finite population with zero population growth. 
B) maximum sustainable population size for the prevailing environment. 
C) minimum number of individuals in a population required to assure reproductive success. 
D) maximum growth rate of a population in which resources are unlimited. 
A) minimum amount of resources needed to sustain a finite population with zero population growth. 
B) maximum sustainable population size for the prevailing environment. 
C) minimum number of individuals in a population required to assure reproductive success. 
D) maximum growth rate of a population in which resources are unlimited.

Question 10

As intraspecific competition increases,growth and development are affected first,followed by individual survival and reproduction.

Accepted Answer

A) True 
 B)False

Question 11

As the density of a population increases,dispersal usually decreases.

Accepted Answer

A) True 
 B)False

Question 12

The carrying capacity (K)of a population can vary depending on the supply of resources.

Accepted Answer

A) True 
 B)False

Question 13

Individuals of some species of migratory songbirds return to the same breeding and wintering grounds each year.

Accepted Answer

A) True 
 B)False

Question 14

By organizing socially into a group,individual animals may benefit by

Accepted Answer

A) coexisting peacefully instead of fighting with group members for dominance. 
B) reducing intraspecific competition for food. 
C) increasing access to a common food supply. 
D) equalizing the number of offspring produced by each group member. 
A) coexisting peacefully instead of fighting with group members for dominance. 
B) reducing intraspecific competition for food. 
C) increasing access to a common food supply. 
D) equalizing the number of offspring produced by each group member.

Question 15

The influence of density-independent factors on populations is generally less predictable than the influence of density-dependent factors.

Accepted Answer

A) True 
 B)False

Question 16

As population density increases in harp seals (Phoca groenlandica),females

Accepted Answer

A) become sexually mature at a smaller body size. 
B) refuse to mate with males. 
C) begin reproduction at a later age. 
D) often cannibalize their own offspring. 
A) become sexually mature at a smaller body size. 
B) refuse to mate with males. 
C) begin reproduction at a later age. 
D) often cannibalize their own offspring.

Question 17

No population continues to grow in size indefinitely.

Accepted Answer

A) True 
 B)False

Question 18

As the density of a population increases,the

Accepted Answer

A) survival rate increases. 
B) reproductive rate increases. 
C) intensity of intraspecific competition decreases. 
D) individual growth rate decreases. 
A) survival rate increases. 
B) reproductive rate increases. 
C) intensity of intraspecific competition decreases. 
D) individual growth rate decreases.

Question 19

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 20

Instead of coping with stress,some animals ________ by leaving the population to seek vacant habitats.

Accepted Answer

The answer of Instead of coping with stress,some animals ________...

Exam 11: Intraspecific Population Regulation

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

A plant grown at high density will produce ________ seeds than the same plant grown at low density.

The rate of aggressive interactions among individuals increases as population density increases.

When extreme contest competition occurs within a population,

Fire is an example of a density-independent factor that affects the size of a population.

Population density can affect the age at which an animal matures.

Density-independent population regulation

Social organization occurs only among invertebrate animals such as ants,bees,and termites.

The carrying capacity refers to the

As intraspecific competition increases,growth and development are affected first,followed by individual survival and reproduction.

As the density of a population increases,dispersal usually decreases.

The carrying capacity (K)of a population can vary depending on the supply of resources.

Individuals of some species of migratory songbirds return to the same breeding and wintering grounds each year.

By organizing socially into a group,individual animals may benefit by

The influence of density-independent factors on populations is generally less predictable than the influence of density-dependent factors.

As population density increases in harp seals (Phoca groenlandica),females

No population continues to grow in size indefinitely.

As the density of a population increases,the

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

Instead of coping with stress,some animals ________ by leaving the population to seek vacant habitats.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Life History

Metapopulations

Species Interactions,population Dynamics,and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

Population Growth, resource Use, and Sustainability

Habitat Loss, biodiversity, and Conservation

Global Climate Change

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