Question

question 14 of 50
which organism in the food web below is at the highest trophic level?
a. robin
b. spider
c. worm
d. grass

Explanation:

Step1: Understand trophic levels

Trophic levels represent positions in a food chain. Producers (like grass) are at the lowest level.

Step2: Analyze each organism

• Grass (D) is a producer (trophic level 1).
• Worm (C) eats grass (trophic level 2).
• Fly eats grass (trophic level 2), spider (B) eats fly (trophic level 3).
• Robin (A) eats both spider and worm. Since it can be at a higher - level consumption (trophic level 4 in the case of eating the spider which is at level 3, and also at level 3 when eating the worm which is at level 2, but overall has the potential to be at the highest among the options as it is a top - level consumer in this simple web).

Answer:

A. Robin