A. Choanocytes: Members of Phylum Porifera (sponges) have choanocytes or collar cells lining the spongocoel and canals . B. Scales: Members of Class Reptilia have dry and cornified skin with epidermal scales or scutes . C. Comb plates: Ctenophores (sea walnuts) have eight external rows of ciliated comb plates for locomotion . D. Radula: Members of Phylum Mollusca have a file-like rasping organ for feeding called radula . This matching corresponds to the exercises in the source .