To solve this problem, we need to match the items in List I with their corresponding features in List II. Let's analyze each item:$\newline \bullet$(a) Metamerism:$\newline$ - Metamerism refers to the segmentation of the body into a series of repetitive segments.$\newline$ - This characteristic is found in the phylum Annelida.$\newline$ - Therefore, (a) matches with (iii).$\newline \bullet$(b) Canal system:$\newline$