Phylum cnidaria

What is one thing that people can do (or are doing) to help save coral reefs?

Briefly (2-3 sentences) describe the process of coral bleaching.

A polyp is a sessile organism. Define the term sessile and give an example of another organism that is sessile.

What phylum of invertebrates does the following picture belong?

• Cnidaria
• Porifera
• Platyhelminthes
• Animalia

What characteristic makes a coral unique from any other cnidarian?

• Algae

• Skeleton

• Stinging cells

• Polyp form

I have many pores and am a filter feeder. State the phylum of this organism

• Porifera (sponge)

• Arthropoda

• Cnidaria

• Molluska

What kind of symmetry does a Cnidarian have?  

• No Symmetry 
• Bilateral Symmetry 
• Radial Symmetry 
• Square

This form of cnidaria is known as a _______.

• polyp
• medusa

State the phylum of this organsim

• Mollusca

• Porifera

• Arthropoda

• Cnidaria

I have four pairs of legs and a body divided into two sections.  I am an arachnid.

• Echinoderm
• Cnidarian
• Mollusk
• Arthropod