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Chapter 1: What is Biology?

Difficulty Level: At Grade Created by: CK-12
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Is this picture a colorful work of abstract art, or is it something else? Imagine shrinking down to a tiny size, so small you could enter a blood vessel. This illustration shows what you might see rushing toward you. Do you know what the red objects are? If you guessed red blood cells, you are right. What about the knobby green objects? Watch out for these! They are viruses that have invaded the blood. However, this image is not scale, in reality viruses are much smaller in relationship to the red blood cells pictured here.

When you read this book, you will take an exciting journey into the realm of blood cells, viruses, and just about everything else that is related to life. You will learn how your own body works, what makes living things unique, and what you and viruses have in common. This first chapter explains how scientists learn about the natural world and introduces you to biology, the science of life.

Image copyright Kjpargeter, 2014. www.shutterstock.com. Used under license from Shutterstock.com.

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Date Created:
Sep 19, 2013
Last Modified:
Sep 13, 2016
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