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Invertebrate Zoology
Name _________________
96 November 21

Directions:  Answer each question as completely as possible.  You do not
need to use complete sentences, but I urge you to do so on the question
requiring longer answers.  Please do watch your spelling.  

Taxonomy:  For each taxon listed provide three answers; Symmetry of organism
	   Nature of digestive tract (e.g., incomplete, complete, lacking,
           etc.)	Mode of foodgetting (e.g., filter feeder, grazer,
           carnivore, etc.)
Porifera (loggerhead sponge)			
Cnidaria (Portuguese man-o-war)			
Ctenophora (sea walnut)			
Cestoda (dog tape worm)			
Annelida (feather duster worm)			
Arthropoda (spider)			
Arthropoda (copepod)			
Mollusca (chiton)			
Mollusca (squid)			
Acanthocephala			
Echinodermata (crinoid)			
Echinodermata (holothuroidean)			
B.  Concepts:  Briefly  explain each of the following concepts.
1.  Optimal Foraging Strategy
2.  Cephalization
3.  Vitamins
4.  Surface area symmetry relationships
5.  Deep scattering layer
C.  Compare and contrast the following pairs of terms with respect to the
term in the parenthesis:
1.  Fats and proteins (as storage forms of energy)
2.  Cellulose and protein (ease of breakdown)
3.  Intracellular and extracellular digestion (as a means of breaking
nutrients into usable materials)
4. Siphon of a mussel and siphon of a squid (function)
5.  Wings of dragon fly and wings of thrips or midges (for flight)
D.  Identify each of the following structures or items as to its
structure, function and taxon of association.
1.  radula
2.  tentacle 
3.  prismatic layer
4.  tube foot
5.  byssal threads
6.  AristotleÕs lantern
7.  muscular extensible pharynx
8.  nematocyst
9.  chelicera
10.  comb rows