Application:
5.3.A3: Recognition features of porifera, cnidaria, platylhelmintha, annelida, mollusca, arthropoda and chordata. [Recognition features expected for the selected animal phyla are those that are most useful in distinguishing the groups from each other and full descriptions of the characteristics of each phylum are not needed.] Objectives:
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The kingdom Animalia can be sub-divided into two main groups – invertebrates (no backbone) and vertebrates (most chordata)
- Examples of invertebrate phyla include porifera, cnidaria, platyhelmintha, annelida, mollusca and arthropoda
- All vertebrates belong to the phylum chordata – however not all chordata are vertebrates (e.g. invertebrate sea squirts)
- These phyla can be differentiated according to a few key recognition features
Invertebrate Phyla Recognition Features: