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What is an invertebrate?

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

This picture is an example of which group of invertebrates?

• Segmented worms
• Fish
• Sponges
• Arthropods

An animal with a soft, unsegmented body often protected by a hard shell:

• mollusk

• cnidarian

• sponge

• segmented worm

Hard outer covering is called an:

• endoskeleton

• exoskeleton

• skeleton

• bones

An internal skeleton is called an:

• endoskeleton

• exoskeleton

• skeleton

• bones

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

• Mollusk
• Arthropod
• Echinoderm
• Cnidarian

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

• Echinoderm
• Arthropod
• Annelid
• Porifera

Which animal below moves with the aid of tube feet and has “spiny skin"?

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identify two mollusks below.

• snail

• crab

• oyster

• shark

7. The orange invertebrate on the image corresponds to a:

• jelly fish

• insect

• coral

• sponge