Connecting Concepts

Use Science Graphics

The graph shows the levels of glucose in the blood of two people during a five-hour period immediately following the ingestion of a typical meal. Use the graph to answer questions 33 and 34.

A line graph indicating the glucose levels of two people after eating a meal.d

  1. Interpret Graphs How long does it take the blood glucose level of the person represented by the blue line to return to a homeostatic value?

  2. Draw Conclusions Which line represents a person who may have diabetes? Which line represents a person who does not have diabetes? Explain your answers.

Write About Science

  1. Persuasion Anabolic steroids are synthetic versions of the hormone testosterone. Although anabolic steroids have important medical uses, they can damage the body if abused. Use library or Internet resources to find more information about anabolic steroids. Then, write an article for your school newspaper informing people of steroids' harmful effects. (Hint: Be sure to support your main ideas with specific details.)

  2. Assess the Choose one of the endocrine glands and describe how that gland is involved in a feedback mechanism that maintains homeostasis.

Analyzing Data

These graphs show the number of multiple births since 1980. The first graph shows births of twins. The second graph shows multiple births consisting of three or more babies. Use the graphs to answer questions 37 and 38.

  1. Interpret Graphs Which birth rate showed the greatest percentage increase from 1980 to 2005?

    1. twins

    2. triplets or more

    3. They increased by the same percentage.

    4. It's impossible to tell from the data.

  2. Calculate Approximately how many times greater was the number of twin births compared with the number of births of triplets or more in the year 1995? (Hint: Note that the numbers on the y-axes are different scales.)

    1. two times

    2. ten times

    3. fifteen times

    4. twenty times

    3. Two line graphs one below the other. One indicates the birth of twins and the other indicates the birth of triplets or more.d

End ofPage 1006

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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