Predators, prey, parasites, photosynthesis producers and other living organisms are called

A) Ecosystem
B) abiotic factor
C) biotic factor
D) commensalism

b: the establishment clause  

b: socialism  

e imma say squidward tentacles

they usually pass federal laws

and sometimes in the elections of the president

. to apply pressure and persuasion to keep party members in the chamber in line.