Which one of the following is the correct sequence of a food chain?
[amp_mcq option1=”Diatoms-Crustaceans-Herrings” option2=”Crustaceans-Diatoms-Herrings” option3=”Diatoms-Herrings-Crustaceans” option4=”Crustaceans-Herrings-Diatoms” correct=”option1″]
This question was previously asked in
UPSC IAS – 2014
– The sequence starts with producers, followed by consumers at different trophic levels.
– Diatoms (phytoplankton) are producers.
– Crustaceans (zooplankton) are primary consumers.
– Herrings (fish) are secondary consumers.