Question

question 6 of 25
if you follow the longest food chain in the food web below from grass to owl,
how many trophic levels are there?

a. five
b. four
c. two
d. three

Explanation:

Step1: Identify the longest food chain

The longest food chain from grass to owl is grass → grasshopper → frog → snake → owl.

Step2: Count the trophic levels

Each organism in the food chain represents a trophic level. Grass (producer - 1st level), grasshopper (primary consumer - 2nd level), frog (secondary consumer - 3rd level), snake (tertiary consumer - 4th level), owl (quaternary consumer - 5th level). So there are 5 trophic levels.

Answer:

A. Five