Animals Without Backbones (Big Science Ideas) (Paperback)

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More than 98% of Earth's animals are invertebrates. Invertebrates do not have backbones or internal skeletons, but some have hard coverings. Insects, spiders, worms, snails, and most ocean animals are invertebrates.

Product Details
ISBN: 9780778732990
ISBN-10: 0778732991
Publisher: Crabtree Publishing Company
Publication Date: September 1st, 2008
Pages: 32
Language: English
Series: Big Science Ideas (Paperback)

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