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Sponges
Cnidaria
Mystery!
Classification
Anatomy
100
This is what the word "porifera" means.
What is pore-bearing?
100

Clownfish live symbiotically with which cnidarian?

What is a sea anemone?

100
These types of organisms do not have a backbone.
What are invertebrates?
100

This class exists in leuconoid form only.  Examples are the boring sponge and the electric blue sponge.

What is Demonspongiae?

100
Cnidarians have this type of symmetry.
What is radial symmetry?
200
This is how all sponges feed.
What is filter feeding?
200
This type of cnidarian is non-moving and attached to substrate.
What is a polyp?
200
This is the most dangerous cnidarian.
What is the box jellyfish?
200

This class exists in Asconoid, Syconoid, Leuconoid form.  An example is the Scypha.

What is Calcarea?

200
These are the pores of a sponge that allow water to flow in.
What is Ostia?
300
All sponges cannot move, which means they are_________.
What is sessile?
300
This is the stinging cell of all cnidarians/
What are nematocysts?
300
Porifera and Cnidaria are both types of...?
What is a phylum?
300

Venus's flower basket is a member of this Class.

What is Hexactinellida?

300
Cnidarians do not have a brain. Instead they have this:
What is a nerve net?
400
Means by which most sponges reproduce.
What is budding?
400

Motile Cnidarians include _______.

What is the Portuguese Man-o-War and the jellyfish?

400

Morphologically, sponges exhibit 3 different types.  Name them.

What are asconoid, syconoid, and leuconoid?

400

Name the 4 classes of Cnidarians.

What are Hydrozoa, Anthozoa, Scyphozoa, and Cubozoa?

400
This structure enables water to flow OUT of a sponge.
What is the osculum?
500

These types of cells have a flagellum to propel water through a sponge.

What are choanocytes or collar cells?

500
This type of Cnidarian is free swimming
What is a medusa?
500

Sponges were considered _________ until 1765.

What are plants?

500

Sea fans, sea pansies, and sea pens belong to this Class.

What is Anthozoa?

500

These cells are responsible for secreting spongin and spicules, storing food particles, and repairing the sponge.

What are amoebocytes?