A squirrel eating food.

FIGURE 18–20 Plants and Animals A sabre-wing hummingbird feeds on a pollinating ginger flower.

▸ Plantae Members of the kingdom Plantae are autotrophs with cell walls that contain cellulose. Autotrophic plants are able to carry on photosynthesis using chlorophyll. Plants are nonmotile—they cannot move from place to place. In this book, we follow the lead of the most current cladistic analysis, making the entire plant kingdom a sister group to the red algae, which are “protists.” The plant kingdom, therefore, includes the green algae, along with mosses, ferns, cone-bearing plants, and flowering plants.

▸ Animalia Members of the kingdom Animalia are multicellular and heterotrophic. Animal cells do not have cell walls. Most animals can move about, at least for some part of their life cycle. As you will see in later chapters, there is incredible diversity within the animal kingdom, and many species of animals exist in nearly every part of the planet.

18.3 Assessment

Review Key Concepts

    1. Review What are the six kingdoms of life as they are now identified?

    2. Explain Why did systematists establish the domain?

    3. Classify What were the monerans? Why did systematists split them into two kingdoms?

    1. Review What are the three domains of life?

    2. Explain Why are quotes used when describing the kingdom “Protista”?

    3. Predict Do you think the tree of life cladogram will always stay the same as it is in Figure 18–18? Explain your answer.

ANALYZING DATA

  1. The table compares some molecular characteristics of organisms in the three domains.

    1. Interpret Tables Which domains have unbranched lipids in their cell membranes?

    2. Interpret Tables Which domain has just one type of RNA polymerase?

    3. Analyze Data On the basis of this table, how are archaea different from bacteria?

    Table compares some molecular characteristics of organisms in the three domains.d

End ofPage 528

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
Go to previous page Go to next page