A:with; for; against
B:against; for; in
C:in; for; with
D:against; with; for
细菌结构示意图,请据图回答问题.
图一表示某生态系统中的食物网;图二是某条食物链中三种生物体内所含有机物总量的直方图.请据图回答问题: