An invertebrate has no bones. Invertebrates include crustaceans, bivalve, insects and molluscs. The group includes 95% of all animal species- all exept those in the chordate subphylum Vertebrata.
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An invertebrate has no bones. Invertebrates include crustaceans, bivalve, insects and molluscs. The group includes 95% of all animal species- all exept those in the chordate subphylum Vertebrata.