Problem 9

Background and context

• Around 10,000 species make up the Cnidaria phylum, which is separated into monophyletic clades including Anthozoa and Medusozoa.
• Corals, sea fans, sea whips, and sea anemones all belong to the monophyletic clade Anthozoa.
• While the Medusozoa clade comprises numerous Cnidaria classes, including Hydrozo. Sessile forms, medusoid forms, and swimming colonial forms are all part of the Hydrozoa.
• Different forms of jellies, such as Scyphozoa and Cubozoa, make up its other clade.