Porifera

Question 0

Name the 3 classes of sponges:

Answer 0

Calcarea
Hexactinella
Demospongiae

Question 1

Porifera means:

Answer 1

Pore-bearing

Question 2

Two types of calcareous sponges and main characteristic of this type:

Answer 2

Leucosolenia
Scypha

Spicules (little spikes)

Question 3

Leucosolenia have a ____ canal system, where Scypha has a _____ canal system.

Answer 3

Simple (asconoid)

Advanced (syconoid)

Question 4

Hexactinellida or glass sponges are also known as ____ sponges are found in what kind of water? Its skeleton consist of crystalline silicon dioxide formed into _____ pointed spicules and is shaped like a____ having a ____ canal system.

Answer 4

Silica
Deep, tropical waters
Six
Vase
Adavanced

Question 5

Demospongiae consists of elastic (____) fibers. ________ sponges are found in the Gulf of Mexico, Caribbean, and the Mediterranean Seas. These have a _____ canal system.

Answer 5

Spongin
Encrusting
Complex

Question 6

Tube like sponges are called:

Answer 6

Leucosolenia

Question 7

Barrel-shaped (or vase) sponges are called:

Answer 7

Scypha