P-3 

 PREDATOR 



An animal that kills and consumes other 

 animals. (See Prey) 



PREDOMINANT 



Those organisms that are of outstanding 

 abundance in a particular community for a 

 given period of time. (See Dominant) 



PREY 



An animal that is killed and consumed by 

 another animal. (See Predator) 



PRIMARY 

 PRODUCTIVITY 



The total quantity of protoplasm produced by 

 autotrophic organisms per unit of time in a 

 specified habitat . 



PRODUCERS 



Organisms that synthesize organic material 

 from inorganic substances; e.g., plants. 

 (See Consumers , Reducers) 



PRODUCTION 



The process of producing organic material; the 

 quantity produced. 



PRODUCTIVITY 



1. Rate of protoplasm formation or energy 

 utilization by one or more organisms ; 

 total quantity of organic material 

 produced within a given period in a 

 specified habitat . 



2. Capacity or ability of an environmental 

 unit to produce organic material. (See 

 Primary Productivity , Secondary Productivity) 



