Unit Test Review: Phyla Porifera, Cnidaria, and Ctenophora

Cells used by a sponge to create an incoming current.

• Archaeocytes
• Choanocytes
• Pinacocytes
• Mesohyl

Name for the pores on a sponge.

• Osculum
• Ostia
• Spicules
• Spongin

Skeleton type make up of microscopic needlelike structures.

• Mesohyl
• Spicules
• Spongin
• Spongocoel

The jellylike extracellular matrix in a sponge.

• Mesohyl
• Osculum
• Pinacocytes
• Ostia

Sponges are considered:

• Monoblastic with only one germ layer
• Diploblastic with two germ layers
• Triploblastic with three germ layers
• Quadroblastic with four germ layers

Sponges have what type of symmetry:

• Bilateral
• Asymmetry
• Radial
• Biradial

What term best describes an adult sponge?

• Sessile
• Sedentary
• Burrowing
• Free-swimming

This class of sponges is made of spongin and spicules.

• Calcarea
• Hexactinellida
• Demospongiae

Spicules are made of calcium carbonate.

• Calcarea
• Hexactinellida
• Demospongiae

Contains mostly deep sea forms, such as the glass sponges.

• Calcarea
• Hexactinellida
• Demospongiae