. . "JUVENILE NONFICTION / Science & Nature / Biology." . . . "Microorganisms"@en . "Our world is filled with living things too small to see. Some of these micro-organisms are harmful, and some are helpful. This book explores the amazing diversity of micro-organisms and looks at how we depend on them." . . . . "Micro-Organisms" . "Electronic books"@en . . . . . . . "\"Our world is filled with living things too small to see. Some of these microorganisms are harmful, and some are helpful. This book explores the amazing diversity of microorganisms and looks at how we depend on them.\" --"@en . "Juvenile works"@en . "Juvenile works" . . . .