Animal Phyla Flashcards

Flashcards about animal phyla based on lecture notes.

Porifera

Phylum with asymmetrical symmetry, acoelomate body cavity, no tissue layers, common name is sponge, filter feeder with pores and canals.

Cnidaria

Phylum with radial symmetry, acoelomate body cavity, diploblastic tissue layers, common name is anemone, stinging cells (cnidocytes), polyp & medusa form.

Echinodermata

Phylum with bilateral symmetry, coelomate body cavity, triploblastic tissue layers, example is brittle star, water vascular system, tube feet, pentamerate.

Platyhelminthes

Phylum with bilateral symmetry, acoelomate body cavity, triploblastic tissue layers, example is planaria, dorsoventrally flattened, ciliated worms, microscopic or parasitic.

Syndermata

Phylum with bilateral symmetry, pseudocoelomate body cavity, triploblastic tissue layers, example is rotifers, microscopic, complex with through gut, mouth, and anus, ciliated wheel bearer.

Mollusca

Phylum with bilateral symmetry, coelomate body cavity, triploblastic tissue layers, example is squid, mantle, foot, visceral mass, often shell (chiton, bivalve).

Annelida

Phylum with bilateral symmetry, coelomate body cavity, triploblastic tissue layers, example is earthworm, segmented body, circulatory system, setae, metameric segmentation.

Arthropoda

Phylum with bilateral symmetry, coelomate body cavity, triploblastic tissue layers, example is spring tail, exoskeleton, jointed appendages.

Physalia

A colonial hydrozoan, belonging to the Phylum Cnidaria and Class Hydrozoa.

Tapeworm

A parasitic flatworm belonging to the Phylum Platyhelminthes.

Rotifers

Also known as Phylum Rotifera.