Though most of them are too small to be seen with the naked eye, bacteria are everywhere. They appeared on Earth more than 3 billion years before the first dinosaurs. Some bacteria cause deadly diseases, but many of them are helpful to us. They fertilise the soil by breaking down dead material, and they are an essential ingredient in many foods. Bacteria in our own bodies are a vital part of the digestive process.
This is Book 10 in the You Wouldn't Want to Live Without Series. See all You Wouldn't Want to Live Without books here.
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Mark Bergin was born in Hastings, England. He has written over twenty books, including It's Fun to Draw Farm Animals and It's Fun to Draw Safari Animals . He has done many book designs, layouts, and storyboards in many styles, including cartoons for numerous books, posters, and advertisements. He lives with his wife and threeMore about Mark Bergin