New PDF release: Germ Wars!: The Secrets of Protecting Your Body

By Melissa Stewart

ISBN-10: 1608702057

ISBN-13: 9781608702053

Explores the secrets and techniques of retaining fit in a clean, cutting edge manner.

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Read e-book online Germ Wars!: The Secrets of Protecting Your Body PDF

Explores the secrets and techniques of holding fit in a clean, cutting edge means.

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Example text

A e c n o t u o b a s after ev e undigestib le parts o ry meal. All the f its prey— teeth—ge fur, bones t packed , i n t o a pellet hurled out a nd of its bod y. When an enemy attacks, a sea cucumber throws up its stomach. That’s enough to scare off most predators. Sometimes your stomach doesn’t notice germs, and they make it all the way to your intestines. Then the irritating invaders get pushed out your back end in a hurry. Mashed-up food particles usually spend about six hours in your small intestine.

Aging Antibodies Ever noticed that you get sick more often than your parents do? That’s because adults have more antibodies to fight off germs. A bloody bandage. A puddle of vomit. A snotty tissue. A wad of earwax. An envelope sealed with spit. What do all these things have in common? They contain DNA—the genetic material inside your cells. It codes for height, eye color, and other body traits. Like fingerprints, everyone’s DNA is different. That means police can use it to help solve crimes. Even when police can’t find fingerprints at a crime scene, they often find traces of DNA.

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Germ Wars!: The Secrets of Protecting Your Body by Melissa Stewart

by Christopher

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Categories: Anatomy