Invertebrates

I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.

• Mullosk
• Arthropod
• Echinoderm
• Cnidarian

I am an arachnid, have four pairs of legs, and a body with two sections.

• Echinoderm
• Arthropod
• Annelid
• Porifera

I am spiny, have a water vascular system with tube feet, radial symmetry, and am called a brittle star.

• Mullosk
• Arthropod
• Echinoderm
• Cnidarian

I am an arachnid, have four pairs of legs, and a body with two sections.

• Echinoderm
• Arthropod
• Annelid
• Porifera

I have a soft-body, a hard shell, and live on land and water.  What am I?

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

I have a hard exoskeleton, a segmented body, pairs of jointed appendages, and live on land and water.  I am a crab.  What is my phylum?

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

I have three pairs of legs and a body divided into three sections.  As a butterfly, I have wings.

• Echinoderm
• Annelid
• Arthropod
• Mollusk

To what phylum do I belong?

• Echinoderm

• Cnidarian

• Mollusk

• Annelid

To what phylum do I belong?

• Annelid

• Mollusk

• Echinoderm

• Cnidarian

Which taxonomic class is the largest?

• Genus

• Species

• Class

• Order