Environment and Ecology
2015
Ecology & Ecosystems
UPSC Practice Question
Which one of the following is the correct sequence of a food chain?
A.Diatoms-Crustaceans-Herrings
D.Crustaceans-Herrings-Diatoms
B.Crustaceans-Diatoms-Herrings
C.Diatoms-Herrings-Crustaceans