Question 1

Figure 53-5 ​
 
​
Refer to the accompanying figure. How would the survivorship curve for elephants be represented?

Accepted Answer

A)  The curve A 
B)  The curve B 
C)  The curve C 
D)  Either A or C, depending on the species 
E)  Elephant populations would be better represented by a curve falling between A and B. 
A)  The curve A 
B)  The curve B 
C)  The curve C 
D)  Either A or C, depending on the species 
E)  Elephant populations would be better represented by a curve falling between A and B.

Question 2

The largest population that can be maintained in an environment for an indefinite period of time is called the carrying capacity.

Accepted Answer

A) True 
 B)False

Question 3

Generally, r -selected organisms exhibit:

Accepted Answer

A)  short life spans and early maturity. 
B)  long life spans and extended parental care of offspring. 
C)  long development time to maturity, but small body size. 
D)  large body size and extended parental care of offspring. 
E)  large body size, but short life spans. 
A)  short life spans and early maturity. 
B)  long life spans and extended parental care of offspring. 
C)  long development time to maturity, but small body size. 
D)  large body size and extended parental care of offspring. 
E)  large body size, but short life spans.

Question 4

An example of a density-dependent factor that influences the size of a population is:

Accepted Answer

A)  rainfall. 
B)  temperature. 
C)  a fire. 
D)  parasites. 
E)  an earthquake. 
A)  rainfall. 
B)  temperature. 
C)  a fire. 
D)  parasites. 
E)  an earthquake.

Question 5

The Earth's carrying capacity is:

Accepted Answer

A)  1 billion. 
B)  1 million. 
C)  4 billion. 
D)  16 billion. 
E)  unknown. 
A)  1 billion. 
B)  1 million. 
C)  4 billion. 
D)  16 billion. 
E)  unknown.

Question 6

The logistic equation:

Accepted Answer

A)  models a J-shaped growth curve. 
B)  takes into account the carrying capacity of the environment. 
C)  predicts continued exponential growth. 
D)  characterizes the uncontrolled growth of a population. 
E)  models a K -shaped growth curve. 
A)  models a J-shaped growth curve. 
B)  takes into account the carrying capacity of the environment. 
C)  predicts continued exponential growth. 
D)  characterizes the uncontrolled growth of a population. 
E)  models a K -shaped growth curve.

Question 7

In Type-I survivorship, the young have a high probability of surviving.

Accepted Answer

A) True 
 B)False

Question 8

What is a typical feature of K -selected organisms?

Accepted Answer

A)  Early reproduction 
B)  Fast development 
C)  A low reproductive rate 
D)  Small body size 
E)  Little parental care of offspring 
A)  Early reproduction 
B)  Fast development 
C)  A low reproductive rate 
D)  Small body size 
E)  Little parental care of offspring

Question 9

Consumption overpopulation is a problem in developing countries.

Accepted Answer

A) True 
 B)False

Question 10

Match between columns
                        Premises: Individuals share limited resources equally

Accepted Answer

The Answer of Exploitation competition and Interference competition is...

Question 11

Which of the following series correctly represents the hierarchical organization within ecology?

Accepted Answer

A)  Ecosystem → population → community → biosphere 
B)  Biosphere → community → population → ecosystem 
C)  Community → population → ecosystem → biosphere 
D)  Population → community → ecosystem → biosphere 
E)  Population → ecosystem → community → biosphere 
A)  Ecosystem → population → community → biosphere 
B)  Biosphere → community → population → ecosystem 
C)  Community → population → ecosystem → biosphere 
D)  Population → community → ecosystem → biosphere 
E)  Population → ecosystem → community → biosphere

Question 12

Source habitats are areas where reproductive success is less than local mortality.

Accepted Answer

A) True 
 B)False

Question 13

The growth rate of a population is expressed as:

Accepted Answer

A)  b − d . 
B)  i − e . 
C)  K − N . 
D)  dN / r . 
E)  ( K − N ) / K . 
A)  b − d . 
B)  i − e . 
C)  K − N . 
D)  dN / r . 
E)  ( K − N ) / K .

Question 14

Match between columns
                        Premises: Also known as contest competition

Accepted Answer

The Answer of Exploitation competition and Interference competition is...

Question 15

Most insects and invertebrates are said to be iteroparous.

Accepted Answer

A) True 
 B)False

Question 16

An example of a density-independent factor is predation.

Accepted Answer

A) True 
 B)False

Question 17

An exponential growth curve levels off at the carrying capacity.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following would increase population size?

Accepted Answer

A)  Natality 
B)  Mortality 
C)  Emigration 
D)  An r less than 0 
E)  An r equal to 0 
A)  Natality 
B)  Mortality 
C)  Emigration 
D)  An r less than 0 
E)  An r equal to 0

Question 19

Trees are often long-lived, strongly competitive, produce thousands of offspring, and disperse their offspring widely. Trees are therefore often best described as having traits that are characteristic of which of the following:

Accepted Answer

A)  r -strategists. 
B)  K -strategists. 
C)  both r - and K -strategists. 
D)  Type I survivorship. 
E)  Type II survivorship. 
A)  r -strategists. 
B)  K -strategists. 
C)  both r - and K -strategists. 
D)  Type I survivorship. 
E)  Type II survivorship.

Exam 53: Introduction to Ecology: Population Ecology

Figure 53-5 ​ ​ Refer to the accompanying figure. How would the survivorship curve for elephants be represented?

The largest population that can be maintained in an environment for an indefinite period of time is called the carrying capacity.

Generally, r -selected organisms exhibit:

An example of a density-dependent factor that influences the size of a population is:

The Earth's carrying capacity is:

The logistic equation:

In Type-I survivorship, the young have a high probability of surviving.

What is a typical feature of K -selected organisms?

Consumption overpopulation is a problem in developing countries.

Which of the following series correctly represents the hierarchical organization within ecology?

Source habitats are areas where reproductive success is less than local mortality.

The growth rate of a population is expressed as:

Most insects and invertebrates are said to be iteroparous.

An example of a density-independent factor is predation.

An exponential growth curve levels off at the carrying capacity.

Which of the following would increase population size?

Trees are often long-lived, strongly competitive, produce thousands of offspring, and disperse their offspring widely. Trees are therefore often best described as having traits that are characteristic of which of the following:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Figure 53-5 Refer to the accompanying figure. How would the survivorship curve for elephants be represented?