$400 $1600 $1200 $800 $1600 $800 $400 $1600 $800 $2000 $1200 $800 $2000 $400 $1200 $400 $1200 $2000 $1200 $1600 $2000 PoriferaCnidaria Cnidarian Classes Coral Reefs Zooxanthellae FJ

This is what collar cells do for sponges. 400 BoardAns

What beats flagella to move water through the sponge. QuestionQuestion BoardBoard

These are the 3 materials sponge skeletons may be made of. 800 BoardAns

What are Calcium carbonate, Silica, or spongin QuestionQuestion BoardBoard

These are the 3 functions of amebocytes in sponges BoardAns

What can Carry food Make spicules Become any other cell QuestionQuestion BoardBoard

Sponges have this type of symmetry BoardAns

What is asymmetrical? Or What is no symmetry? QuestionQuestion BoardBoard

Daily Double BoardAns

Type Answer to Column 1, 2000 point question. Question Question BoardBoard

This is the characteristic all Cnidarians have in common. 400 BoardAns

What are nematocysts or stinging cells? Question Question BoardBoard

This is alternation of generations. 800 BoardAns

What is one body type giving rise to the other – polyp and medusa? QuestionQuestion BoardBoard

Cnidarians have this type of symmetry BoardAns

What is radial symmetry? QuestionQuestion BoardBoard

Cnidaria have this many openings BoardAns

What is one? QuestionQuestion BoardBoard

The ciliated swimming larvae of a Cnidarian that settles down and becomes a polyp is called this BoardAns

What is a planula larvae? QuestionQuestion BoardBoard

Order Siphonophora belongs in this class. 100 point Bonus: This is an example of a siphonophore. 400 BoardAns

What is Hydrozoa? Bonus: What is Portuguese Man-o-War? Question Question BoardBoard

This group has no alternation of generations. 800 BoardAns

What is Anthozoa? Question Question BoardBoard

This group’s dominant obvious stage is the medusa BoardAns

What is Scyphozoa? Question Question BoardBoard

This group is usually colonial BoardAns

What is Hydrozoa? Question Question BoardBoard

Sea Wasps are in this class BoardAns

What is Cubozoa? QuestionQuestion BoardBoard

This is why coral reefs only grow in warm, shallow, clear water. 400 BoardAns

What is to get light for zooxanthellae and help take CaCO 3 out of the water QuestionQuestion BoardBoard

Coral reefs only develop in water that averages above this temperature. 800 BoardAns

What is 70° F? Question Question BoardBoard

Hermatypic corals are corals that do this BoardAns

What is build reefs. Question Question BoardBoard

Most of the coral growth on a reef occurs here BoardAns

What is the reef crest? Question Question BoardBoard

Coral reefs are known a the “canaries of the coal mines” because of this BoardAns

What is corals are very sensitive to environmental changes. QuestionQuestion BoardBoard

Zooxanthellae are this kind of organism. 400 BoardAns

What is a dinoflagellate? QuestionQuestion BoardBoard

When corals get stressed they do this to the zooxanthellae. 800 BoardAns

What is eat them or kick them out? Question Question BoardBoard

This is how many zooxanthellae can be found in 1 cm 2 of coral tissue. BoardAns 1200

What is one million? Question Question BoardBoard

Column 5, 1600 points BoardAns

Type Answer to Column 5, 1600 point question. QuestionQuestion BoardBoard

These are 2 other organisms zooxanthellae can be found in BoardAns

What are giant clams, sponges, and sea squirts? QuestionQuestion BoardBoard

Daily Double 1

This is the covering of a nematocyst. BoardAns

What is an operculum? QuestionQuestion BoardBoard

Daily Double 2

Mesenteric filaments do this. BoardAns

What allows coral to compete, and digests from outside the coral polyp body? QuestionQuestion BoardBoard

Final Jeopardy: Antropogenic threats to coral reefs.

These are 4 anthropogenic threats to coral reefs.

What are 1.Destructive fishing practices 2. Overfishing 3.Collecting organisms for aquariums 4.Pollution 5.Mining corals for building materials Question