Which of the following constitute a food-chain?

Which of the following constitutes a food chain ?

Which of the following constitute(s) a food chain?

Given figure represents food chains of a deciduous woodland linked together to form a food web. Which of the following constitute first trophic level of the grazing food chain and the detritus food chain respectively ?

Given figure represents food chains of a deciduous woodland linked together to form a food web. Which of the following constitute first trophic level of the grazing food chain and the detritus food chain respectively ?

Which of the following is a detritus food chain?

Which of the following is a correct food chain?

Which of the following is the correct food chain?

Which of the following is correct about food chain?

Which one of the following is correct food chain ?

Which one of the following constitutes the reserve food material in the cyst of Entamoeba histolytica ?