試題詳解

12. You are cleaning out an old lab freezer and find a tube that contains the ground-up remains of an unknown animal. Your research advisor suggests that you perform chemical assays to determine what molecules made up the animal. After analyzing the data, you determine that the animal contained a large amount of chitin. What type of animal was in the tube?
(A) mollusc
(B) reptile
(C) arthropod
(D) annelid