Question 1

A type III survivorship curve is characteristic of all of the following EXCEPT

Accepted Answer

A) flies. 
B) primates. 
C) frogs. 
D) sea stars. 
E) fish. 
A) flies. 
B) primates. 
C) frogs. 
D) sea stars. 
E) fish. B

Question 2

Density-independent factors that limit population growth include

Accepted Answer

A) parasites. 
B) temperature. 
C) disease. 
D) competition. 
E) predation. 
A) parasites. 
B) temperature. 
C) disease. 
D) competition. 
E) predation. B

Question 3

All EXCEPT which one of the following are the reasons for the rapid population explosion of humans?

Accepted Answer

A) increases in carrying capacity 
B) expansion into new habitats 
C) removal of limiting factors 
D) reproduction occurring earlier in the life cycle 
E) None of these   
A) increases in carrying capacity 
B) expansion into new habitats 
C) removal of limiting factors 
D) reproduction occurring earlier in the life cycle 
E) None of these   D

Question 4

Which density-dependent factor affects the size of a population?

Accepted Answer

A) wind velocity 
B) light intensity 
C) nutrient supply 
D) rainfall 
E) humidity 
A) wind velocity 
B) light intensity 
C) nutrient supply 
D) rainfall 
E) humidity

Question 5

Life tables provide data concerning

Accepted Answer

A) expected life span. 
B) reproductive age. 
C) death rate. 
D) birth rate. 
E) all of these. 
A) expected life span. 
B) reproductive age. 
C) death rate. 
D) birth rate. 
E) all of these.

Question 6

A population of 1,000 individuals with an r = 1 per individual per year in an unlimited environment will number __________, four years later.

Accepted Answer

A) 1,000 
B) 1,004 
C) 4,000 
D) 16,000 
E) 40,000 
A) 1,000 
B) 1,004 
C) 4,000 
D) 16,000 
E) 40,000

Question 7

Every population has a characteristic

Accepted Answer

A) size. 
B) density. 
C) distribution. 
D) number of individuals in its various age categories. 
E) all of these. 
A) size. 
B) density. 
C) distribution. 
D) number of individuals in its various age categories. 
E) all of these.

Question 8

-The animal in the above photograph was adversely affected by __________ and is making a comeback thanks to __________.

Accepted Answer

A) global cooling; heat producing chemical added to their diet 
B) sexually transmitted viruses; a new vaccine 
C) limited number of natural cavities; artificial nesting boxes 
D) high incidence of males being born; transplantation of females from other areas 
E) all of these 
A) global cooling; heat producing chemical added to their diet 
B) sexually transmitted viruses; a new vaccine 
C) limited number of natural cavities; artificial nesting boxes 
D) high incidence of males being born; transplantation of females from other areas 
E) all of these

Question 9

A study of a cohort of 1,000 animals showed a 90 percent death rate per individual in the first year, 10 percent the second year, and 5 percent the third year.This population's survivorship is

Accepted Answer

A) type I. 
B) type II. 
C) type III. 
D) type I the first year and type II in years two and three. 
E) type I the first year, type II the second year, and type III the third year. 
A) type I. 
B) type II. 
C) type III. 
D) type I the first year and type II in years two and three. 
E) type I the first year, type II the second year, and type III the third year.

Question 10

If K (carrying capacity) for a population is 1,200, and r = 0.1, which of the following populations will show the greatest increase over the course of one year assuming exponential growth?

Accepted Answer

A) N = 100 
B) N = 200 
C) N = 300 
D) N = 700 
E) N = 900 
A) N = 100 
B) N = 200 
C) N = 300 
D) N = 700 
E) N = 900

Question 11

If K (carrying capacity) for a population is 1,200, and r = 0.9, which of the following populations will show the greatest increase over the course of one year assuming exponential growth?

Accepted Answer

A) N = 100 
B) N = 200 
C) N = 300 
D) N = 700 
E) N = 900 
A) N = 100 
B) N = 200 
C) N = 300 
D) N = 700 
E) N = 900

Question 12

The accuracy of the capture-recapture methods depends on all of the following EXCEPT that

Accepted Answer

A) marked individuals are recaptured at random. 
B) unmarked individuals are captured at random. 
C) none of the marked individuals are overlooked. 
D) no marked individual dies or departs during the study. 
E) no new individuals are produced during the study. 
A) marked individuals are recaptured at random. 
B) unmarked individuals are captured at random. 
C) none of the marked individuals are overlooked. 
D) no marked individual dies or departs during the study. 
E) no new individuals are produced during the study.

Question 13

The factors that tend to reduce the size of a population regardless of its initial size are

Accepted Answer

A) density-dependent factors. 
B) density-independent factors. 
C) ecological factors. 
D) biotic factors. 
E) species-independent factors. 
A) density-dependent factors. 
B) density-independent factors. 
C) ecological factors. 
D) biotic factors. 
E) species-independent factors.

Question 14

Questions refer to the figure above illustrating logistic growth.
  
-A change in the environment's long-term ability to sustain the population is indicated by

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 15

The change in population size is measured in terms of

Accepted Answer

A) birth rates. 
B) death rates. 
C) the number of individuals entering the population. 
D) the number of individuals leaving the population. 
E) all of these. 
A) birth rates. 
B) death rates. 
C) the number of individuals entering the population. 
D) the number of individuals leaving the population. 
E) all of these.

Question 16

Seasonal bird migration exemplifies

Accepted Answer

A) clumped dispersion. 
B) uniform distribution. 
C) random dispersion. 
D) distribution over time. 
E) all of these. 
A) clumped dispersion. 
B) uniform distribution. 
C) random dispersion. 
D) distribution over time. 
E) all of these.

Question 17

Recurring travel between two distinct destinations is

Accepted Answer

A) migration. 
B) cyclic emigration. 
C) emigration. 
D) immigration. 
E) cyclic immigration. 
A) migration. 
B) cyclic emigration. 
C) emigration. 
D) immigration. 
E) cyclic immigration.

Question 18

Questions refer to the figure above illustrating logistic growth.
  
-The population is in exponential growth at

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 19

Which of the following is NOT true regarding guppies of the species Poecilia reticulata?

Accepted Answer

A) Males are generally smaller than the females. 
B) Males are more brightly colored than the females. 
C) Males continue growing after reaching sexual maturity. 
D) The male's colors serve as visual signals for mating. 
E) They have complex mating rituals. 
A) Males are generally smaller than the females. 
B) Males are more brightly colored than the females. 
C) Males continue growing after reaching sexual maturity. 
D) The male's colors serve as visual signals for mating. 
E) They have complex mating rituals.

Question 20

Questions refer to the figure above illustrating logistic growth.
  
-N is equal to the initial carrying capacity at

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Exam 45: Population Ecology

A type III survivorship curve is characteristic of all of the following EXCEPT

Density-independent factors that limit population growth include

All EXCEPT which one of the following are the reasons for the rapid population explosion of humans?

Which density-dependent factor affects the size of a population?

Life tables provide data concerning

A population of 1,000 individuals with an r = 1 per individual per year in an unlimited environment will number __________, four years later.

Every population has a characteristic

-The animal in the above photograph was adversely affected by __________ and is making a comeback thanks to __________.

A study of a cohort of 1,000 animals showed a 90 percent death rate per individual in the first year, 10 percent the second year, and 5 percent the third year.This population's survivorship is

If K (carrying capacity) for a population is 1,200, and r = 0.1, which of the following populations will show the greatest increase over the course of one year assuming exponential growth?

If K (carrying capacity) for a population is 1,200, and r = 0.9, which of the following populations will show the greatest increase over the course of one year assuming exponential growth?

The accuracy of the capture-recapture methods depends on all of the following EXCEPT that

The factors that tend to reduce the size of a population regardless of its initial size are

Questions refer to the figure above illustrating logistic growth. -A change in the environment's long-term ability to sustain the population is indicated by

The change in population size is measured in terms of

Seasonal bird migration exemplifies

Recurring travel between two distinct destinations is

Questions refer to the figure above illustrating logistic growth. -The population is in exponential growth at

Which of the following is NOT true regarding guppies of the species Poecilia reticulata?

Questions refer to the figure above illustrating logistic growth. -N is equal to the initial carrying capacity at

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

-The animal in the above photograph was adversely affected by and is making a comeback thanks to .