By saying "they employ chemical warfare" (Line 4, Para. 2), Bruce Ames means "______".A.pl
By saying "they employ chemical warfare" (Line 4, Para. 2), Bruce Ames means "______".
A.plants produce certain chemicals to combat pests and diseases
B.plants absorb useful chemicals to promote their growth
C.farmers use manmade chemicals to dissolve the natural chemicals in plants
D.farmers use chemicals to protect plants against pests and diseases