Octopus which animal group

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All bilaterally symmetrical animals are divided into two groups: protostomes and deuterostomes. Early in development, a dent or depression called a blastopore forms in the embryo. In deuterostomes, which includes all vertebrates, this dent eventually forms into the anus. In protostomes like octopuses, the blastopore forms into the mouth. Eric Moll began writing professionally in A List of Mollusks. Crabs That Are Related to Spiders. What Are the Five Subdivisions of Kingdoms?

The Anatomy of the Hydra. Do Elk Have Ivory Teeth? Levels of Classification of Microbiology. Genus — Octopus. Species — Octopus vulgaris. Domain - The Domain is quite straight forward. An octopus is not a bacteria and therefore not in the Domain "Bacteria. An octopus is Eukaryotic and therefore it belongs to the Domain "Eukarya. Kingdom - The Kingdom is also pretty obvious. The octopus is an animal not a prokaryote or a protist.

Phylum - Molluska, this phylum contains snails, slugs, clams, oyster, nudibranchs, squid and of course octopuses. All of these creatures have a head foot, a visceral mass, and a mantle. Of the 75, species, 40, are aquatic or marine. Class - Octopuses are in the class Cephalopoda because they have a prominant head.

Cephalization is the term for having an anterior mouth and literally means "head foot".