Phylum - Wikipedia In biology, a phylum ( ˈfaɪləm ; pl : phyla) is a level of classification, or taxonomic rank, that is below kingdom and above class
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What Is a Phylum in Biology and How Are They Classified? Examples of Major Phyla The Phylum Chordata includes all vertebrates (animals with a backbone) and a few closely related invertebrates The defining feature is the presence of a notochord, a dorsal hollow nerve cord, and pharyngeal slits at some point in the life cycle Humans, fish, birds, and reptiles all share this basic body plan
What Are Animal Phyla? A Simple Guide to Nature’s Building Blocks To make sense of this enormous diversity, biologists divide animals into groups based on shared evolutionary traits These groups are called phyla Before diving into specific phyla, it’s essential to understand how these terms relate to each other