Glencoe Science_ Animal Diversity_Glencoe McGraw-Hill.pdf下载分享

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探索阿拉斯加棕熊与鲑鱼的生态互动。了解棕熊作为顶级掠食者的生活习性以及鲑鱼的生命周期，包括它们从淡水到海洋再到繁殖地的迁移过程。

• 文件名称：Glencoe Science_ Animal Diversity_Glencoe McGraw-Hill.pdf

• 文件类型：PDF文档

• 文件标签：动物多样性、生态学、生物

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Animal Diversity

This Alaskan brown bear is
catching a migrating salmon.
This species of bear is the
largest carnivore in Alaska,
growing up to nine feet tall and
weighing up to 1,700 pounds.
All Alaskan salmon hatch in
freshwater, migrate to the sea,
and then eventually return
to where they hatched to
reproduce.

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Glencoe/McGraw-Hill
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Columbus,OH 43240-4027

ISBN:0-07-861740-5

Printed in the United States of America.

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Copyright © 2005 by The McGraw-Hill Companies,Inc.All rights reserved.Except as permitted under
the United States Copyright Act,no part of this publication may be reproduced or distributed in any
form or by any means,or stored in a database or retrieval system,without prior written permission
of the publisher.

The National Geographic features were designed and developed by the National Geographic Society’s
Education Division.Copyright © National Geographic Society.The name “National Geographic Society”
and the Yellow Border Rectangle are trademarks of the Society,and their use,without prior written
permission,is strictly prohibited.

The “Science and Society”and the “Science and History”features that appear in this book were
designed and developed by TIME School Publishing,a division of TIME Magazine.TIME and the red
border are trademarks of Time Inc.All rights reserved.

Bill Bachmann/Rainbow

CONTENT

Jerome A. Jackson, PhD
Whitaker Eminent Scholar in
Science
Program Director
Center for Science, Mathematics,
and Technology Education
Florida Gulf Coast University
Fort Meyers, FL

Dominic Salinas, PhD
Middle School Science Supervisor
Caddo Parish Schools
Shreveport, LA

MATH

Teri Willard, EdD
Mathematics Curriculum Writer
Belgrade, MT

READING

Carol A. Senf, PhD

School of Literature,
Communication, and Culture
Georgia Institute of Technology
Atlanta, GA

SAFETY

Sandra West, PhD
Department of Biology
Texas State University-San Marcos
San Marcos, TX

ACTIVITY TESTERS

Nerma Coats Henderson
Pickerington Lakeview Jr. High
School
Pickerington, OH

Mary Helen Mariscal-Cholka

William D. Slider Middle School
El Paso, TX

Science Kit and Boreal
Laboratories
Tonawanda, NY

C ◆
iii

Authors

Series Consultants

Maureen Barrett
Thomas E. Harrington Middle
School
Mt. Laurel, NJ

Cory Fish
Burkholder Middle School
Henderson, NV

Amy Morgan
Berry Middle School
Hoover, AL

Dee Stout
Penn State University
University Park, PA

Darcy Vetro-Ravndal
Hillsborough High School
Tampa, FL

Series Reviewers

Education Division
Washington, D.C.

Lucy Daniel, PhD

Teacher/Consultant
Rutherford County Schools
Rutherfordton, NC

Dinah Zike
Educational Consultant
Dinah-Might Activities, Inc.
San Antonio, TX

Why do I need
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Have you ever been in class and
not understood all of what was
presented? Or, you understood
everything in class, but at home,
got stuck on how to answer a
question? Maybe you just
wondered when you were ever
going to use this stuff?

These next few pages
are designed to help you
understand everything your
science book can be used
for . . . besides a paperweight!

Before You Read

●Chapter Opener Science is occurring al...