Question 1

Match the distribution pattern with the environmental factor that influences population distribution.
-is often a result of asexual reproduction

Accepted Answer

A) clumped 
B) near-uniform 
C) random 
A) clumped 
B) near-uniform 
C) random

Question 2

The carrying capacity of an environment is determined by the ____.

Accepted Answer

A) net rate of reproduction of the female members 
B) frequency and intensity of natural disasters 
C) predation rate on the females 
D) severity of diseases suffered by both sexes 
E) sustainable supply of resources it provides 
A) net rate of reproduction of the female members 
B) frequency and intensity of natural disasters 
C) predation rate on the females 
D) severity of diseases suffered by both sexes 
E) sustainable supply of resources it provides

Question 3

Match each statement to the correct ecological term.
-For most of human history, all regions were in this stage, but today no country is.

Accepted Answer

A) carrying capacity 
B) total fertility rate 
C) age structure 
D) replacement fertility rate 
E) reproductive base 
A) carrying capacity 
B) total fertility rate 
C) age structure 
D) replacement fertility rate 
E) reproductive base

Question 4

Four of the five answers listed below are characteristics of an opportunistic life history. Select the exception.

Accepted Answer

A) early reproduction 
B) higher early mortality, shorter life 
C) fewer breeding episodes, many young per episode 
D) more parental investment 
E) result of r-selection 
A) early reproduction 
B) higher early mortality, shorter life 
C) fewer breeding episodes, many young per episode 
D) more parental investment 
E) result of r-selection

Question 5

A group of organisms that interbreed with one another more often than they interbreed with other members of their species defines a(n) ____.

Accepted Answer

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

Question 6

Exponential growth will occur as long as r ____ and is ____ zero.

Accepted Answer

A) increases; greater than 
B) increases; less than 
C) remains constant; equal to 
D) remains constant; greater than 
E) remains constant; less than 
A) increases; greater than 
B) increases; less than 
C) remains constant; equal to 
D) remains constant; greater than 
E) remains constant; less than

Question 7

-According to the accompanying figure, the per capita ecological footprint for the United States is approximately ____ times the world average 2.7 hectares.

Accepted Answer

A) ten 
B) five 
C) six 
D) twenty 
E) three 
A) ten 
B) five 
C) six 
D) twenty 
E) three

Question 8

Estimates derived from plot sampling are most accurate when species are not very ____ and conditions across their habitat are uniform.

Accepted Answer

A) well-defined 
B) small in size 
C) healthy 
D) mobile 
E) stationary 
A) well-defined 
B) small in size 
C) healthy 
D) mobile 
E) stationary

Question 9

An example of a density-independent limiting factor that influences population growth is ____.

Accepted Answer

A) parasites 
B) temperature 
C) disease 
D) competition for food 
E) competition for shelter 
A) parasites 
B) temperature 
C) disease 
D) competition for food 
E) competition for shelter

Question 10

A situation in which the birth rate equals the death rate is called ____.

Accepted Answer

A) an intrinsic limiting factor 
B) exponential growth 
C) saturation 
D) zero population growth 
E) geometric growth 
A) an intrinsic limiting factor 
B) exponential growth 
C) saturation 
D) zero population growth 
E) geometric growth

Question 11

Out of the countries listed, which has the largest ecological footprint?

Accepted Answer

A) France 
B) Mexico 
C) China 
D) the United States 
E) India 
A) France 
B) Mexico 
C) China 
D) the United States 
E) India

Question 12

Four of the five answers are traits that influence the life history pattern of a living organism. Select the exception.

Accepted Answer

A) age at which the organism begins to reproduce 
B) how often the organism reproduces. 
C) number of offspring produced per reproductive event 
D) length of the reproductive stage 
E) natural disasters that influence survivorship 
A) age at which the organism begins to reproduce 
B) how often the organism reproduces. 
C) number of offspring produced per reproductive event 
D) length of the reproductive stage 
E) natural disasters that influence survivorship

Question 13

The growth of a population per unit time is calculated by using this formula: G = r × N. What is the quantity r and how is it calculated?

Accepted Answer

A) The quantity r is the exponential growth rate and is calculated by subtracting the number of deaths from the number of births. 
B) The quantity r is the per capita growth rate and is calculated by multiplying the number of births and the number of deaths. 
C) The quantity r is the per capita growth rate and is calculated by subtracting the number of deaths from the number of births. 
D) The quantity r is the biotic potential of a population and is calculated by adding the birth rate and the death rate. 
E) The quantity r is the monthly net increase of a population and is calculated by subtracting the number of births from the starting population size. 
A) The quantity r is the exponential growth rate and is calculated by subtracting the number of deaths from the number of births. 
B) The quantity r is the per capita growth rate and is calculated by multiplying the number of births and the number of deaths. 
C) The quantity r is the per capita growth rate and is calculated by subtracting the number of deaths from the number of births. 
D) The quantity r is the biotic potential of a population and is calculated by adding the birth rate and the death rate. 
E) The quantity r is the monthly net increase of a population and is calculated by subtracting the number of births from the starting population size.

Question 14

Match the distribution pattern with the environmental factor that influences population distribution.
-proximity to others neither benefits nor harms individuals

Accepted Answer

A) clumped 
B) near-uniform 
C) random 
A) clumped 
B) near-uniform 
C) random

Question 15

Match the distribution pattern with the environmental factor that influences population distribution.
-involves intense competition for limited resources

Accepted Answer

A) clumped 
B) near-uniform 
C) random 
A) clumped 
B) near-uniform 
C) random

Question 16

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

Accepted Answer

A) wind velocity 
B) light intensity 
C) nutrient supply 
D) amount of precipitation 
E) wave action in an intertidal zone 
A) wind velocity 
B) light intensity 
C) nutrient supply 
D) amount of precipitation 
E) wave action in an intertidal zone

Question 17

Match the distribution pattern with the environmental factor that influences population distribution.
-some animals benefit by grouping together

Accepted Answer

A) clumped 
B) near-uniform 
C) random 
A) clumped 
B) near-uniform 
C) random

Question 18

Match each statement to the correct ecological term.
-​The world's least developed countries are in this stage (for example, Afghanistan and Ethiopia).

Accepted Answer

A) carrying capacity 
B) total fertility rate 
C) age structure 
D) replacement fertility rate 
E) reproductive base 
A) carrying capacity 
B) total fertility rate 
C) age structure 
D) replacement fertility rate 
E) reproductive base

Question 19

The total number of individuals in a population is the ____.

Accepted Answer

A) population distribution 
B) reproductive base 
C) biotic potential 
D) population size 
E) carrying capacity 
A) population distribution 
B) reproductive base 
C) biotic potential 
D) population size 
E) carrying capacity

Question 20

At time one, 50 butterflies were captured and marked with paint. Two days later, 100 were captured and 10 were previously marked. What is the estimated population size?

Accepted Answer

A) 100 
B) 500 
C) 1000 
D) 5000 
E) 10,000 
A) 100 
B) 500 
C) 1000 
D) 5000 
E) 10,000

Exam 40: Population Ecology

Match the distribution pattern with the environmental factor that influences population distribution. -is often a result of asexual reproduction

The carrying capacity of an environment is determined by the ____.

Match each statement to the correct ecological term. -For most of human history, all regions were in this stage, but today no country is.

Four of the five answers listed below are characteristics of an opportunistic life history. Select the exception.

A group of organisms that interbreed with one another more often than they interbreed with other members of their species defines a(n) ____.

Exponential growth will occur as long as r ____ and is ____ zero.

-According to the accompanying figure, the per capita ecological footprint for the United States is approximately ____ times the world average 2.7 hectares.

Estimates derived from plot sampling are most accurate when species are not very ____ and conditions across their habitat are uniform.

An example of a density-independent limiting factor that influences population growth is ____.

A situation in which the birth rate equals the death rate is called ____.

Out of the countries listed, which has the largest ecological footprint?

Four of the five answers are traits that influence the life history pattern of a living organism. Select the exception.

The growth of a population per unit time is calculated by using this formula: G = r × N. What is the quantity r and how is it calculated?

Match the distribution pattern with the environmental factor that influences population distribution. -proximity to others neither benefits nor harms individuals

Match the distribution pattern with the environmental factor that influences population distribution. -involves intense competition for limited resources

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

Match the distribution pattern with the environmental factor that influences population distribution. -some animals benefit by grouping together

Match each statement to the correct ecological term. -​The world's least developed countries are in this stage (for example, Afghanistan and Ethiopia).

The total number of individuals in a population is the ____.

At time one, 50 butterflies were captured and marked with paint. Two days later, 100 were captured and 10 were previously marked. What is the estimated population size?

The Science of Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where It Starts-Photosynthesis

Releasing Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Patterns in Inherited Traits

Human Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Lifes Origin and Early Evolution

Viruses, Bacteria, and Archaea

The Protists

Plant Evolution

Fungi

Animals I: Major Invertebrate Groups

Animals Ii: the Chordates

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Reproduction and Development

Animal Behavior

Community Ecology

Ecosystems

The Biosphere

Human Effects on the Biosphere

Filters

Exponential growth will occur as long as r and is zero.

Match each statement to the correct ecological term. -The world's least developed countries are in this stage (for example, Afghanistan and Ethiopia).