Connecting Concepts

Use Science Graphics

The following actual and projected data, from the United Nations Department of Economic and Social Affairs, Population Division, show when the global population reached or will reach an additional billion. Use the data table to answer questions 30 and 31.

d

  1. Observe When did the world population reach 1 billion people? When did it reach 6 billion?

  2. Interpret Tables Describe the trend in population growth since the 1-billion-people mark.

Write About Science

  1. Explanation Write a paragraph on the human population. Include the characteristics of a population, factors that affect its size, and changes in the size of the population from about 500 years ago to the present. Give a projection of how large the world population might be in the year 2050 and of how the growth rate in 2050 might compare to that in 2000. (Hint: Outline your ideas before you begin to write.)

  2. Assess the Choose a specific organism and explain how the population of that organism depends on a number of factors that may cause it to increase, decrease, or remain stable in size.

Analyzing Data

The following graph shows the “boom-and-bust” pattern of regular rises and falls in the rabbit population in South Australia. The points at which various population control measures were introduced are indicated. Use the graph to answer questions 34 and 35.

Graph titled "Rabbit Population Changes".d

  1. Interpret Graphs In which of the following years was the rabbit population density in South Australia most dense?

    1. 1936

    2. 1952

    3. 1975

    4. 2000

  2. Infer European rabbit fleas were introduced in the late 1960s to help spread the effects of the rabbit disease myxomatosis. Based on the graph, what can you infer about the rabbit population after the fleas were introduced?

    1. The rabbit birthrate increased.

    2. The rabbit death rate increased.

    3. The rabbit death rate decreased.

    4. The fleas had no effect on the rabbit population.

End ofPage 150

Table of Contents

Miller & Levine Biology
About the Authors
Changing the World of Biology Education
Contents
Diversity of Life: A Visual Guide DOL•1–DOL•64
Labs and Activities
Features
UNIT 1 The Nature of Life
1 The Science of Biology
2 The Chemistry of Life
Unit Project
UNIT 2 Ecology
3 The Biosphere
4 Ecosystems and Communities
5 Populations
6 Humans in the Biosphere
Unit Project
UNIT 3 Cells
7 Cell Structure and Function
8 Photosynthesis
9 Cellular Respiration and Fermentation
10 Cell Growth and Division
Unit Project
UNIT 4 Genetics
11 Introduction to Genetics
12 DNA
13 RNA and Protein Synthesis
14 Human Heredity
15 Genetic Engineering
Unit Project
UNIT 5 Evolution
16 Darwin's Theory of Evolution
17 Evolution of Populations
18 Classification
19 History of Life
Unit Project
UNIT 6 From Microorganisms to Plants
20 Viruses and Prokaryotes
21 Protists and Fungi
22 Introduction to Plants
23 Plant Structure and Function
24 Plant Reproduction and Response
Unit Project
UNIT 7 Animals
25 Introduction to Animals
26 Animal Evolution and Diversity
27 Animal Systems I
28 Animal Systems II
29 Animal Behavior
Unit Project
UNIT 8 The Human Body
30 Digestive and Excretory Systems
31 Nervous System
32 Skeletal, Muscular, and Integumentary Systems
33 Circulatory and Respiratory Systems
34 Endocrine and Reproductive Systems
35 Immune System and Disease
Unit Project
A Visual Guide to The Diversity of Life
HOW TO USE THIS GUIDE
THE TREE OF LIFE
Bacteria
Protists
Fungi
Plants
Animals
Appendices
Appendix A Science Skills
Appendix B Lab Skills
Appendix C Technology & Design
Appendix D Math Skills
Appendix E Periodic Table
Glossary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q, R
S
T
U
V
W
X, Y, Z
Index
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Credits
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