Untitled Flashcards Set

Porifera

Sponges: Simple aquatic animals characterized by a porous body structure that allows water to flow through.

Oscula

Openings in sponges through which water flows out.

Pores

Small openings in sponges that allow water to flow in.

Choanocytes

Specialized cells that line the interior of sponges and help filter food particles from the water.

Class Demospongiae

A class of sponges characterized by leuconid body structures, commonly referred to as 'bath sponges'.

Leuconid

A body structure in sponges with complex channels.

Class Calcarea

A class of sponges that have a calcium carbonate skeleton.

Order Leucosolenia

An order within the Class Calcarea of sponges.

Class Hexactinellida

Also known as 'glass sponges', these sponges feature a silica shell and are exclusively found in deep sea.

Phylum Cnidaria

Characterized by radial symmetry and specialized cells called cnidocytes, which contain stinging structures.

Cnidocytes

Specialized cells in Cnidaria that contain stinging structures used for defense and capturing prey.

Class Hydrozoa

A class within Phylum Cnidaria that includes Hydra and siphonophores, such as the Portuguese Man o' war.

Class Scyphozoa

A class within Phylum Cnidaria that includes jellyfish, such as cannonball jelly and gonionemus.

Subclass Octocorallia

Includes soft corals like sea pens, sea whips, and gorgonians.

Subclass Hexacorallia

Includes hard corals and sea anemones.

Phylum Platyhelminthes

Flatworms with bilateral symmetry, including free-living and parasitic forms.

Class Turbellaria

Free-living flatworms that are primarily aquatic.

Genus Planaria

A genus of free-living flatworms found in freshwater.

Class Trematoda

Class of parasitic flatworms, commonly known as flukes.

Genus Fasciola

Known as the sheep liver fluke, a type of trematode.

Class Cestoda

Class of parasitic flatworms known as tapeworms.

Genus Dipylidium

Commonly known as the dog flea tapeworm.

Phylum Nematoda

Also known as roundworms, including families such as Ascaridae (roundworms) and Ancylostomatidae (hookworms).

Phylum Annelida

Segmented worms such as earthworms and leeches.

Class Errantia

Class of controlled, mobile segmented worms, which includes sandworms.

Family Nereididae

A family of annelids commonly known as sandworms.

Family Lumbricidae

Family of annelids that includes earthworms.

Phylum Mollusca

A diverse phylum including animals like snails, octopuses, and clams.

Class Gastropoda

Class of mollusks that includes snails and slugs.

Family Unionidae

Family of bivalves commonly known as freshwater mussels.

Class Bivalvia

Class of mollusks that has two shells, including clams and oysters.

Class Cephalopoda

Class of mollusks that includes octopuses, squids, and cuttlefish.

Family Nautilidae

Family of mollusks known as nautiluses.