C-4 

 CONSUMERS 



Heterotrophic organisms, chiefly animals, 

 that ingest other organisms or particle 

 organic matter. Often divided into primary 

 consumers (Herbivores ) , secondary consumers 

 ( Carnivores which eat primary consumers), etc. 

 (See Heterotrophic , Trophic Level ) 



CONTINENTAL SHELF 



The shallow, gently sloping portion of the 

 seabottom bordering a continent, down to a 

 depth of about 200 meters. 



CONTINENTAL SLOPE 



The steeply sloping portion of the seabottom 

 extending seaward from the continental shelf . 



CORAL 



A marine member of the phylum Coelenterata 

 which secretes a hard exoskeleton, chiefly of 

 calcium carbonate. 



CORAL REEF 



Large coral mass associated with coastal areas 

 in the tropics (See Barrier Reef , Fringing 

 Reef, Atoll) 



CRITERIA 



( Water Quality Criteria ) 



CRITICAL LEVEL 



(Threshold) 



CRITICAL RANGE 



In bioassays , the range of magnitude of any 

 factor between the maximum level or concentration 

 at which no organisms die to the minimum level 

 or concentration at which all organisms die 

 under a given set of conditions in a given 

 period of time. 



