Question 1

Iteroparity is common in which of the following organisms?

Accepted Answer

A)  perennial herbaceous plants 
B)  most insects 
C)  agaves 
D)  most invertebrates 
E)  Pacific salmon 
A)  perennial herbaceous plants 
B)  most insects 
C)  agaves 
D)  most invertebrates 
E)  Pacific salmon

Question 2

The best definition of population density is the number of individuals:

Accepted Answer

A)  of all species in a given area. 
B)  of one species in a given area. 
C)  in a given area at a given time. 
D)  of all species in a given area at a given time. 
E)  of one species in a given area at a given time. 
A)  of all species in a given area. 
B)  of one species in a given area. 
C)  in a given area at a given time. 
D)  of all species in a given area at a given time. 
E)  of one species in a given area at a given time.

Question 3

Compare and contrast r -selected and K -selected organisms. Give examples of both plant and animal species that fit each category.

Accepted Answer

Concepts to Consider: r -selected organi

Question 4

The average number of children born to a woman during her lifetime is known as:

Accepted Answer

A)  age structure. 
B)  replacement-level fertility. 
C)  natality. 
D)  total fertility rate. 
E)  infant mortality rate. 
A)  age structure. 
B)  replacement-level fertility. 
C)  natality. 
D)  total fertility rate. 
E)  infant mortality rate.

Question 5

The potential capacity to produce offspring is called:

Accepted Answer

A)  life history traits. 
B)  fitness. 
C)  age structure. 
D)  density. 
E)  fecundity. 
A)  life history traits. 
B)  fitness. 
C)  age structure. 
D)  density. 
E)  fecundity.

Question 6

Which factors are an example of a negative feedback system?

Accepted Answer

A)  density dependent 
B)  density independent 
C)  intraspecific competition 
D)  interspecific competition 
E)  scramble competition 
A)  density dependent 
B)  density independent 
C)  intraspecific competition 
D)  interspecific competition 
E)  scramble competition

Question 7

Species that exhibit repeated reproductive cycles are said to be semelparous .

Accepted Answer

A) True 
 B)False

Question 8

When r = 0.00001, the population size:

Accepted Answer

A)  will increase. 
B)  will decrease. 
C)  is stable. 
D)  may increase or decrease, depending on K . 
E)  may increase or decrease, depending on i . 
A)  will increase. 
B)  will decrease. 
C)  is stable. 
D)  may increase or decrease, depending on K . 
E)  may increase or decrease, depending on i .

Question 9

What would be the growth rate ( r ) of an island population of 1000 that has 30 births per 100 population, 20 death per 100 population, 5 immigrants per 100 population, and 10 emigrants per 100 population?

Accepted Answer

A)  +5 
B)  − 50 
C)  +50 
D)  − 150 
E)  +150 
A)  +5 
B)  − 50 
C)  +50 
D)  − 150 
E)  +150

Question 10

Sketch an exponential growth curve with correctly labeled axes. Identify two organisms and the conditions under which they might demonstrate such growth.

Accepted Answer

The sketch should resemble Fig. 53-2 on

Exam 53: Introduction to Ecology Population Ecology

Iteroparity is common in which of the following organisms?

The best definition of population density is the number of individuals:

Compare and contrast r -selected and K -selected organisms. Give examples of both plant and animal species that fit each category.

The average number of children born to a woman during her lifetime is known as:

The potential capacity to produce offspring is called:

Which factors are an example of a negative feedback system?

Species that exhibit repeated reproductive cycles are said to be semelparous .

When r = 0.00001, the population size:

What would be the growth rate ( r ) of an island population of 1000 that has 30 births per 100 population, 20 death per 100 population, 5 immigrants per 100 population, and 10 emigrants per 100 population?

Sketch an exponential growth curve with correctly labeled axes. Identify two organisms and the conditions under which they might demonstrate such growth.

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

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