A) Sparrow
B) Lion
C) Goat
D) Frog
Correct Answer: A
Solution :
Sparrow feeds upon grains hence, is called primary consumer or herbivore and belongs to second trophic level\[({{T}_{2}}).\] It also feeds upon insects in the same ecosystem at the same time, hence, called secondary consumer or primary carnivores, and now belongs to third trophic level CIs).
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