A. Earthworm | 1. Gizzard (It is a muscle used for grinding food completely) |
B. Cockroach | 3. Scutellum ( posterior portion of the mesonotum present in insects) |
C. Frog | 4. Cloaca ( exit cavity present for reproductive, digestive and urinary system) |
D. Rat | 2. Caecum (part of digestive system which receives undigested food and converts it into faeces) |