Answer and explanation

Correct answer: A. Grass → grasshopper → frog → snake

  1. Step 1: Arrows point in the direction of energy flow, from the producer to the top consumer. Answer: Grass → grasshopper → frog → snake. Why not the others: Snake → frog → grasshopper → grass, Frog → grass → snake → grasshopper and Grasshopper → snake → grass → frog don't fit.

Practise more Biology.

Free questions with an explanation for every one, and full timed Uzbekistan National Certificate (Milliy sertifikat) mock tests.