Jean Lightner Books

The Ecology Book
The Ecology Book

By Tom Hennigan, Jean Lightner

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"This book is designed to make an informative unit study on created symbioses crucial for life. Outdoor activities are intertwined so that families and students can actively study and participate i...

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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