In the food web shown, the hawk reaches its food along several paths.

Explanation

1. 01

   A trophic level is the organism's position in a chain, counting the producer as level 1.

2. 02

   Grass → rabbit → hawk puts the hawk at level 3; grass → mouse → snake → hawk at level 4; grass → grasshopper → frog → snake → hawk at level 5.

3. 03

   So the hawk feeds at 3 different levels: 3, 4 and 5.