Invertebrates

Which is not a main class within the phylum of mollusca?

• crustacean 
• cephalopod
• gastropod
• bivalve

Which of the following is a cephalopod?

• snail
• slug
• oyster
• octopus

These all belong to the phylum _________.

• porifera
• annelida
• arthropoda
• cnidaria

Dragonflies, stink bugs, and lady bugs are __________.

• insects
• arthropods
• animals
• all of these

Most animals ________.

• are invertebrates
• are arthropods
• have jointed legs
• all of these

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

• Mullosk
• Arthropod
• Echinoderm
• Cnidarian

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

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

In what phylum am I?

• Mollusk
• Echinoderm
• Cnidarian
• Annelid

I am spiny and have a water vascular system with tube feet.  I am a sea cucumber.

• Cnidarian
• Echinoderm
• Mollusk
• Annelid

What is an invertebrate?

• An animal with a backbone
• a mammal
• An animal without a backbone
• birds