Question 1

Which population would most likely resemble a random distribution pattern?

Accepted Answer

A)  humans in North America 
B)  penguins nesting in Antarctica 
C)  wolves in Isle Royale 
D)  termites in a rainforest 
E)  understory plants in a tropical rainforest 
A)  humans in North America 
B)  penguins nesting in Antarctica 
C)  wolves in Isle Royale 
D)  termites in a rainforest 
E)  understory plants in a tropical rainforest

Question 2

The rate of natural increase approximates zero when carrying capacity is reached and

Accepted Answer

A)  birth rate  death rate. 
D)  the death rate falls to zero. 
E)  the birth rate falls to zero. 
A)  birth rate  death rate. 
D)  the death rate falls to zero. 
E)  the birth rate falls to zero.

Question 3

Which of the following represents exponential population growth?

Accepted Answer

A)  100→110→120→130→140 
B)  100→110→130→160→200 
C)  100→110→121→133→146 
D)  100→150→200→250→300 
E)  100→150→250→450→850 
A)  100→110→120→130→140 
B)  100→110→130→160→200 
C)  100→110→121→133→146 
D)  100→150→200→250→300 
E)  100→150→250→450→850

Question 4

You are interested in the population size of two species of caterpillars.One caterpillar has a very specific diet,feeding exclusively on only three species of tree,while the other has a very broad diet,feeding on 15 species of tree.Which caterpillar species will be easiest to count? Explain your answer.

Accepted Answer

The caterpillar that feeds on only three

Question 5

In a geographically isolated habitat,DNA analysis of a population can document

Accepted Answer

A)  DNA inbreeding. 
B)  loss of genetic diversity. 
C)  identification of individuals by DNA profiling. 
D)  changes in allele frequency of a gene. 
E)  All of the above. 
A)  DNA inbreeding. 
B)  loss of genetic diversity. 
C)  identification of individuals by DNA profiling. 
D)  changes in allele frequency of a gene. 
E)  All of the above.

Question 6

Schools of fish in a reef are an example of a ____ distribution.

Accepted Answer

A)  random 
B)  linear 
C)  spherical 
D)  clumped 
E)  uniform 
A)  random 
B)  linear 
C)  spherical 
D)  clumped 
E)  uniform

Question 7

How do the population curves of predator and prey relate to each other?

Accepted Answer

A)  A decrease in prey is followed by an increase in predators. 
B)  An increase in the prey population is followed by an increase in predators. 
C)  An increase in the predator population is followed by an increase in prey. 
D)  Both populations level off once carrying capacity is reached. 
E)  An increase in the prey population is followed by a decrease in predators. 
A)  A decrease in prey is followed by an increase in predators. 
B)  An increase in the prey population is followed by an increase in predators. 
C)  An increase in the predator population is followed by an increase in prey. 
D)  Both populations level off once carrying capacity is reached. 
E)  An increase in the prey population is followed by a decrease in predators.

Question 8

Does carrying capacity ever change? Explain,using examples.

Accepted Answer

Changes in an environment that increase

Question 9

A report that documents all the species (plants and animals)in an area but does not include the environment describes

Accepted Answer

A)  the ecological niche of each species. 
B)  a habitat. 
C)  a community. 
D)  a population. 
E)  a biome. 
A)  the ecological niche of each species. 
B)  a habitat. 
C)  a community. 
D)  a population. 
E)  a biome.

Question 10

You have a population of 1000 individuals that is increasing at a growth rate of 10% per year.What will the population be in 5 years?

Accepted Answer

A)  1500 
B)  1610 
C)  1250 
D)  1110 
E)  2000 
A)  1500 
B)  1610 
C)  1250 
D)  1110 
E)  2000

Question 11

Discuss the three modes of species distribution,giving examples of each type.

Accepted Answer

The three modes of species distribution

Question 12

Which is a density-dependent factor?

Accepted Answer

A)  predation 
B)  flooding 
C)  extremes of temperature 
D)  fire 
E)  drought 
A)  predation 
B)  flooding 
C)  extremes of temperature 
D)  fire 
E)  drought

Question 13

Which population distribution pattern is encountered most often by ecologists?

Accepted Answer

A)  random 
B)  clumped 
C)  uniform 
D)  irregular 
E)  asymmetric 
A)  random 
B)  clumped 
C)  uniform 
D)  irregular 
E)  asymmetric

Question 14

Circle one of each pair in italics: As temperature increases,tick populations increase/decrease,which make moose easier/harder for wolves to catch,so wolf populations temporarily increase/decrease.

Accepted Answer

increase;

Question 15

The growth rate of a population is calculated from the ___ for that population.

Accepted Answer

A)  carrying capacity 
B)  difference between births and deaths 
C)  birth rate 
D)  death rate 
E)  birth rate and the carrying capacity 
A)  carrying capacity 
B)  difference between births and deaths 
C)  birth rate 
D)  death rate 
E)  birth rate and the carrying capacity

Question 16

How does a high predator population affect the population of a prey species?

Accepted Answer

It will ca

Question 17

The total number of wolves inhabiting Isle Royale is defined as a _____.

Accepted Answer

A)  species 
B)  community 
C)  population 
D)  group 
E)  pack 
A)  species 
B)  community 
C)  population 
D)  group 
E)  pack

Question 18

A report based on the interactions of wolves,moose,ticks,and trees on Isle Royale describes a(n)______.

Accepted Answer

A)  population 
B)  community 
C)  habitat 
D)  biome 
E)  ecosystem 
A)  population 
B)  community 
C)  habitat 
D)  biome 
E)  ecosystem

Question 19

List at least 5 abiotic factors that shape an ecosystem.

Accepted Answer

temperature extremes,rainfall

Question 20

A decrease in the predator population that consumes herbivorous animals will cause ____.

Accepted Answer

A)  a decrease in food plant populations 
B)  some food plant populations to explode out of control 
C)  a general increase in food plant populations 
D)  a loss of species diversity 
E)  an increase in species diversity 
A)  a decrease in food plant populations 
B)  some food plant populations to explode out of control 
C)  a general increase in food plant populations 
D)  a loss of species diversity 
E)  an increase in species diversity

Exam 21: B: Population Ecology on the Tracks of Wolves and Moose

Which population would most likely resemble a random distribution pattern?

The rate of natural increase approximates zero when carrying capacity is reached and

Which of the following represents exponential population growth?

In a geographically isolated habitat,DNA analysis of a population can document

Schools of fish in a reef are an example of a ____ distribution.

How do the population curves of predator and prey relate to each other?

Does carrying capacity ever change? Explain,using examples.

A report that documents all the species (plants and animals)in an area but does not include the environment describes

You have a population of 1000 individuals that is increasing at a growth rate of 10% per year.What will the population be in 5 years?

Discuss the three modes of species distribution,giving examples of each type.

Which is a density-dependent factor?

Which population distribution pattern is encountered most often by ecologists?

Circle one of each pair in italics: As temperature increases,tick populations increase/decrease,which make moose easier/harder for wolves to catch,so wolf populations temporarily increase/decrease.

The growth rate of a population is calculated from the ___ for that population.

How does a high predator population affect the population of a prey species?

The total number of wolves inhabiting Isle Royale is defined as a _____.

A report based on the interactions of wolves,moose,ticks,and trees on Isle Royale describes a(n)______.

List at least 5 abiotic factors that shape an ecosystem.

A decrease in the predator population that consumes herbivorous animals will cause ____.

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

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