Question 1

What was the long-term effect of the introduction of myxoma virus to control rabbits in Australia?

Accepted Answer

A)  The rabbits were all killed. 
B)  Most rabbits became immune to the virus. 
C)  The virus killed off some of the rabbit population but also infected kangaroos and wallabies. 
D)  The virus became less virulent and the rabbits gained some immunity. 
E)  The virus had no effect. 
A)  The rabbits were all killed. 
B)  Most rabbits became immune to the virus. 
C)  The virus killed off some of the rabbit population but also infected kangaroos and wallabies. 
D)  The virus became less virulent and the rabbits gained some immunity. 
E)  The virus had no effect.

Question 2

Logistic population growth describes growth without limitation.

Accepted Answer

A) True 
 B)False

Question 3

Which trait is characteristic of a K -selected species?

Accepted Answer

A)  adapted to rapidly changing environments 
B)  small body size 
C)  short generation time 
D)  provide substantial parental care to offspring 
E)  single reproductive event 
A)  adapted to rapidly changing environments 
B)  small body size 
C)  short generation time 
D)  provide substantial parental care to offspring 
E)  single reproductive event

Question 4

Parasitism is a density- independent factor of population control.

Accepted Answer

A) True 
 B)False

Question 5

-Answer the question using the accompanying figure. Humans living in environments with access to good medical care are most likely to exhibit which of the following survivorship curves?

Accepted Answer

A)  Type I, which is graph A 
B)  Type II, which is graph B 
C)  Type I, which is graph C 
D)  Type III, which is graph C 
E)  Type III, which is graph A 
A)  Type I, which is graph A 
B)  Type II, which is graph B 
C)  Type I, which is graph C 
D)  Type III, which is graph C 
E)  Type III, which is graph A

Question 6

The logistic model assumes that ____ will become increasingly limited as population grows larger.

Accepted Answer

A)  deaths 
B)  births 
C)  immigration 
D)  competition 
E)  vital resources 
A)  deaths 
B)  births 
C)  immigration 
D)  competition 
E)  vital resources

Question 7

Biologists captured and marked 120 butterflies, and later captured 150 of which 30 were marked. The population estimate is 1000 butterflies.

Accepted Answer

A) True 
 B)False

Question 8

Match between columns
                        Premises: exponential population growth
the logistic model

Accepted Answer

The Answer of the number of individuals per unit area is...

Question 9

Males have little influence on population growth in populations with ____.

Accepted Answer

A)  more males than females 
B)  more females than males 
C)  equal numbers of females and males 
D)  one male 
E)  animals that form lifelong pairs 
A)  more males than females 
B)  more females than males 
C)  equal numbers of females and males 
D)  one male 
E)  animals that form lifelong pairs

Question 10

Egg yolk and seed endosperm are examples of passive parental care.

Accepted Answer

A) True 
 B)False

Question 11

An increase in generation time with increasing body size is least likely in ____.

Accepted Answer

A)  bacteria 
B)  plants 
C)  animals 
D)  protists 
E)  fungi 
A)  bacteria 
B)  plants 
C)  animals 
D)  protists 
E)  fungi

Question 12

Match between columns
                        Premises: logistic model of population growth
change in population size
population growth under ideal conditions
per capita death rate
exponential model of population growth

Accepted Answer

The Answer of ΔN/Δt = B - D and d is...

Question 13

The sum total of all the resources we use is called the ____.

Accepted Answer

A)  demographic transition model 
B)  age-structure diagram 
C)  habitat 
D)  ecological footprint 
E)  transitional age 
A)  demographic transition model 
B)  age-structure diagram 
C)  habitat 
D)  ecological footprint 
E)  transitional age

Question 14

Populations of bay checkerspot butterflies that occupy large patches of suitable habitat serve as sink populations for individuals that recolonize small patches of suitable habitat where butterfly populations frequently become extinct.

Accepted Answer

A) True 
 B)False

Question 15

Which population dispersion is the most common in nature?

Accepted Answer

A)  random 
B)  clumped 
C)  uniform 
D)  dynamic 
E)  unpredictable 
A)  random 
B)  clumped 
C)  uniform 
D)  dynamic 
E)  unpredictable

Question 16

Uniform dispersion usually results from individuals of a species repelling each other.

Accepted Answer

A) True 
 B)False

Question 17

A human population living without medical care in a developing country would probably have ____.

Accepted Answer

A)  a rectangle-shaped age structure diagram 
B)  an r value 
C)  a pyramid-shaped age structure diagram 
D)  per capita birth and death rates consistent with those of a stage 4 society 
E)  no density-dependent factors operating 
A)  a rectangle-shaped age structure diagram 
B)  an r value 
C)  a pyramid-shaped age structure diagram 
D)  per capita birth and death rates consistent with those of a stage 4 society 
E)  no density-dependent factors operating

Question 18

A population of 100 animals undergoing logistic growth has rmax= 0.4 and K = 102. Given that r = rmax(K - N)/K, calculate the value of r.

Accepted Answer

A)  0.0078 
B)  0.792 
C)  - 0 . 5 80 
D)  0.078 
E)  0.99 
A)  0.0078 
B)  0.792 
C)  - 0 . 5 80 
D)  0.078 
E)  0.99

Question 19

Which characteristic is descriptive of a population experiencing geometric population growth?

Accepted Answer

A)  population doubles in size after each generation 
B)  graph of the population growth produces a "J" shaped curve 
C)  per capita growth rate remains constant 
D)  ΔN/Δt is increasing 
E)  population increases at an increasing rate 
A)  population doubles in size after each generation 
B)  graph of the population growth produces a "J" shaped curve 
C)  per capita growth rate remains constant 
D)  ΔN/Δt is increasing 
E)  population increases at an increasing rate

Question 20

An example of passive parental care is ____.

Accepted Answer

A)  nutrients that cross the placenta 
B)  nursing 
C)  nurturing 
D)  the nest environment 
E)  protection from predators 
A)  nutrients that cross the placenta 
B)  nursing 
C)  nurturing 
D)  the nest environment 
E)  protection from predators

Exam 52: Population Ecology

What was the long-term effect of the introduction of myxoma virus to control rabbits in Australia?

Logistic population growth describes growth without limitation.

Which trait is characteristic of a K -selected species?

Parasitism is a density- independent factor of population control.

-Answer the question using the accompanying figure. Humans living in environments with access to good medical care are most likely to exhibit which of the following survivorship curves?

The logistic model assumes that ____ will become increasingly limited as population grows larger.

Biologists captured and marked 120 butterflies, and later captured 150 of which 30 were marked. The population estimate is 1000 butterflies.

Males have little influence on population growth in populations with ____.

Egg yolk and seed endosperm are examples of passive parental care.

An increase in generation time with increasing body size is least likely in ____.

The sum total of all the resources we use is called the ____.

Populations of bay checkerspot butterflies that occupy large patches of suitable habitat serve as sink populations for individuals that recolonize small patches of suitable habitat where butterfly populations frequently become extinct.

Which population dispersion is the most common in nature?

Uniform dispersion usually results from individuals of a species repelling each other.

A human population living without medical care in a developing country would probably have ____.

A population of 100 animals undergoing logistic growth has rmax= 0.4 and K = 102. Given that r = rmax(K - N)/K, calculate the value of r.

Which characteristic is descriptive of a population experiencing geometric population growth?

An example of passive parental care is ____.

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

A population of 100 animals undergoing logistic growth has r_max= 0.4 and K = 102. Given that r = r_max(K - N)/K, calculate the value of r.