Classification of the Phylum Cnidaria | Zoology
In this article we will discuss about the classification of phylum cnidaria. Classification of the Phylum Cnidaria: 1. The Cnidaria are radially symmetrical in oral-aboral axis (biradial in some Anthozoa); no head and segmentation; simplest of all metazoans with a low grade of tissue formation. 2. The body wall is composed of two principal layers, an outer epidermis (ectoderm) and [...]