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Excerpt from Crater Lake National Park: Scenic Values StudyOf visitors at the two sites were not substantially different. Therefore, researchers concluded that visitors sampled at the Visitor Center were.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to d...

Excerpt from Crater Lake National Park: Scenic Values StudyOf visitors at the two sites were not substantially different. Therefore, researchers concluded that visitors sampled at the Visitor Center were.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to d...

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The muscular system is made up of three different kinds of musclesskeletal muscles, smooth muscle, and heart muscle. But what does each kind of muscle do? And where in the body are they located? Explore the muscular system in this engaging and informative book.

The digestive system is made up of the tongue, esophagus, stomach, intestines, and other parts. But what does the digestive system do? And how do its parts work together to keep your body healthy? Explore the digestive system in this engaging and informative book.

Are zombies real? Scientists know this for sure: dead people do not come back to life. But there are things that can take over the bodies and brains of innocent creatures, turning them into senseless slaves. Meet nature's zombie makersNincluding a fly-enslaving fungus, a suicide worm, and a cockroach-taming waspNand their victims. Full color.

Describes the human musculoskeletal system, how it works, what parts of it we can control and what parts we can't and how to keep it healthy.

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Relates the competition between Othniel Marsh and Edward Cope to discover more fossils, name more species, and publish more papers that brought out the best and worst in them and provided the world with a new view of life on Earth.

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Readers are introduced to living things with some of the strangest defenses known to science: termites that blow themselves up to save the colony, fish that produce copious amounts of gooey, slippery slime, lizards that run on water, and other animals that defend themselves in peculiar ways. Full color.

In the animal kingdom, survival is the name of the game

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After the 1986 Chernobyl nuclear explosion, scientists believed radiation would make the area a barren wasteland. Today the Dead Zone is teeming with wildlife. But every plant and animal is radioactive, leaving scientists wondering how their survival is possible.

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An introduction to the human body's immune system.

Supports National Science Education Standards- Unifying Concepts and Processes: Systems, Order, and Organization- Unifying Concepts and Processes: Evidence, Models, and Explanation- Unifying Concepts and Processes: Form and Function

Take a walk in the deciduous forest. In this biome of leafy trees and fast changing weather, there are four very different seasons. As you walk through this incredible biome, discover how all living things form a community and depend on each other for survival.