Quiz: Phyla Cnidaria and Ctenophora

An organelle characteristic of the cnidaria that is used in defense, food gathering, and attachment is called _______.

• cnida

• chloroplast

• mitochondrion

• flagellum

The cells that produce and discharge the cnidae in members of the phylum Cnidaria are called _______.

• cnidocytes

• nematocysts

• spicules

• choanocytes

Adhesive cells on ctenophoran tentacles for capturing prey are called _______.

• colloblasts

• nematocysts

• spicules

• cnidocytes

Rows of cilia that are the locomotor organs of ctenophorans are called _______.

• comb rows

• setae

• parapodia

• flagella

Having separate (male and female) sexes; male and female organs are in separate individuals is called _______.

• dioecious

• monoecious

• hermaphroditic

• bisexual

A miniature medusa produced by asexual budding of a scyphistoma, which mature into sexually mature medusae, is called _______.

• ephyrae

• planula

• polyp

• strobila

A sheet of cells covering the surface of an animal's body. In invertebrates, a single layer of ectodermal epithelium is called _______.

• epidermis

• dermis

• cuticle

• mesoderm

The endodermally derived lining of the gastrovascular cavity of Cnidaria is called _______.

• gastrodermis

• epidermis

• mesoglea

• coelenteron

The large central cavity of cnidarians and flatworms that receives and digests food, and has a single opening serving as both mouth and anus is called _______.

• gastrovascular cavity

• coelom

• alveolus

• nephridium

A feeding polyp in a colonial hydrozoan is called _______.

• gastrozooid

• gonozooid

• dactylozooid

• nematocyst