Which of the following is NOT a characteristic of Arthropods?

A slug is a terrestrial mollusk without a shell. Which Class do they belong to?

Clams belong to which subphylum of Mollusks?

Pill bugs are not actually bugs, but instead more closely related to spiders. This means that a pill bug does NOT have...

Which of the following is an example of a chordate but is NOT a vertebrate?

What purpose does the water vascular system of a sea star serve?

Which phylum includes the largest number of organisms?

Which of the following organisms is NOT segmented?

Which of the following animals do NOT have a true coelom?

Part Number 7 is the covering of this body segment. What is the covering called?

#3 is a specialized appendage to crustaceans. What is this appendage called?

Part #10 is the last segment of the abdomen. The name of this segment is the ___.

The small holes lining the abdomen of the grasshopper are specialized organs that allow the grasshopper to breathe. They are indicated by the 3 arrows on the belly. These small holes are called ___.

A grasshopper has 3 major body segments like all insects. The middle of these segments is called the ___.

Gastropods, like the snail have a specialized structure in its mouth to help it eat. This structure is called the ___.

The shell of a mollusk is secreted and made by a special tissue layer called the ____.

This structure is responsible for the movement of a mollusk.

What is the smallest group?

Clams, Oysters and Mussels are all:

Shrimp, Lobster and Crabs are all

The Squid is in which Mollusk Class?

Grasshoppers, flies, moths and butterflies belong in this Arthropod Class:

Earthworms belong in which Annelid Class?

Tube worms belong in which Annelid Class?

Regeneration is the ability of invertebrates to

The only cephalopod which still has an external shell is the

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

Which phylum is mainly asymmetrical?