What is similar about both pieces? Answer is ---> Both pieces provide information about how mercury poison can effect the body.) How do the differences in the two mediums affect their meaning? ( The second picture is pictures of body parts) 1: Brain-> changes in mood, like feeling cranky, nervous, tired, or shy. 2: Ears-> trouble hearing. 3: Heart:-> High blood pressure. 4: Stomach-> Nausea. 6: Kindneys-> Damage to the kidneys.