Invertebrate Exam

Invertebrates are animals

• with a backbone
• without a backbone

What am I?

• Mollusk
• Annelid
• Arthropod
• Cnidarian

What am I?

• Arthropod
• Cnidarian
• Mollusk
• 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 round body divided into segments and my digestive tract has two openings.

• Echinoderm
• Cnidarian
• Annelid
• Mollusk

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

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

I have a round body, which is divided into segments and a digestive tract with two openings.  I am a leech.  What Phyla am I in?

• Mollusk
• Echinoderm
• Arthropod
• Annelid

I have spiny skin, water vascular system with tube feet, and a radial symmetry.  I am a sea anemone.

• Arthropod
• Cnidarian
• Echinoderm
• Mollusk

I have a digestive cavity with one opening, and have tentacles.  I am a hydra.

• Echinoderm
• Cnidarian
• Arthropod
• Mollusk