Name: __________________________________ Date: _________________________ Pd: _____________
Marine Invertebrate Jeopardy Review
Phylum Cnidaria
10 pts: What are two examples of animals that of part of Phylum Cnidaria?
20 pts: Which type of body symmetry do all cnidarians have in common?
30 pts: Why are nematocysts important to cnidarians such as fire corals and jellyfish?
40 pts: Cnidarians have a polyp body form and a medusa body form. How are these two
body forms different? Explain in detail.
50 pts: Why is the Portuguese Man of War more complex than other Cnidarians?
Phyla Platyhelminthes, Nematoda and Annelida
10 pts: Which phylum has flatworms with a simple digestive system where there is only
one opening for food and waste?
20 pts: Which phylum has roundworms with a simple but complete digestive system?
30 pts: How are flatworms and roundworms different besides their body shapes?
40 pts: If you find a polychaete marine worm that has metamerism (its body is divided into
segments), which phylum do you predict it belongs to and why?
50 pts: If you find a worm that has a flat shape but also has a complete digestive system,
which phylum do you predict it belongs to and why?
Phylum Mollusca
10 pts: What are the 3 characteristics that all mollusks have in common?
20 pts: If you found a mollusk such as an octopus or squid, which class would it belong to
and why?
30 pts: If you found a snail or sea slug at the beach, which class would it belong to and
why?
40 pts: If you found a mollusk such as a clam or oyster on the beach, which class would it
belong to and why?
50 pts: Why is the mantle important to all mollusks? Give at least two examples of how it is
used by mollusks.
Phylum Echinodermata
10 pts: What are the two purposes of a sea star's tube feet?
20 pts: What are the two purposes of a sea urchin's spine?
30 pts: Which invertebrate is similar to a sea star in that it has radial symmetry but it has a
disk shaped body?
40 pts: What are the 3 characteristics that all Echinoderms have in common?
50 pts: Why is the water vascular system important to sea stars?
Phyla Arthropoda and Porifera
10 pts: What is an example of an animal found in Phylum Porifera?
20 pts: What are two examples of animals found in Phylum Arthropoda?
30 pts: Why are chelipeds important to lobsters and crabs?.
40 pts: Why is the oscula an important part of the sponge?
50 pts: Why are spicules important to the sponge?
Final Question: Which part of the clam is very important in defense and we learned about
it in the clam lab?