These are the two types of cnidarians.
What are polyps and medusas?
These are the three types of mollusks.
What are gastropods, bivalves, and octopods?
These are the four groups of arthropods.
What are arachnids, insects, crustaceans, and centipedes and millipedes?
The number of "hearts", or aortic arches, in a worm.
What is 5?
This is the number of appendages on a squid.
What is 10?
This is the type of "feeders" that sponges are.
What are filter feeders?
This is one type of bivalve.
What is a clam?
This is the position a sea star's stomach is relating to the body.
What is central?
The "brain" of a worm has this name.
What is a nerve center?
This part of a squid, used for swimming, is on the anterior dorsal side.
What are fins?
This is the purpose for which sponges are harvested.
What is cleaning?
This is a type of octopod.
What is a squid or mollusk?
Two types of echinoderms.
What are sea stars, brittle stars, sea urchins, or sea cucumbers?
This insect, named after a cotton ___, eats cotton seeds.
What is a boll weevil?
Tapeworms, the longest species of flatworm, can be up to this long.
What is 10 to 12 meters?
A Portuguese man-o'-war has as many as this number or more organisms working as one.
What is 1,000?
This is one type of gastropod.
What is a snail/slug?
Two more types of echinoderms.
What are sea stars, brittle stars, sea urchins, or sea cucumbers?
The intestine of a worm runs this length in the worm.
What is along the length of the worm?
The number of actual hearts a squid has.
What is 1?
In this stage of a jellyfish, it reproduces.
What is medusa?
What is a quarter?
This is the name of the appendages on the bottom of the"arms" that sea stars use to move.
What are tube feet?
This is the number of body segments in all insects.
What is 3?
On the other end of the spectrum, this is the length of the shortest planarian, so that it is almost this.
What is microscopic?