invertebrate

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Animal without a backbone. The invertebrates form all of the major divisions of the animal kingdom called phyla, with the exception of vertebrates. Invertebrates include the sponges, coelenterates, flatworms, nematodes, annelids, arthropods, molluscs, and echinoderms.

Red, yellow, and green are the pan-African colours. Effective date: 24 September 1973. >>