Mr. $X $ is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying
First trophic level
Second trophic level
Third trophic level
Fourth trophic level
A plant being eaten by a herbivorous which in turn is eaten by a carnivorous makes
They are not primary producers in an aquatic ecosystem
What is common in earthworm, soil mites and dung beetle in an ecosystem?
First link in any food chain is a green plant because
Give differences : Food chain and food web