Question

1. which best describes the flow of energy through this food web?

a gannet get energy from tuna.
b sardines get energy from gannet.
c phytoplankton get energy from zooplankton.
d tuna get energy from sardines.

Explanation:

First, map the energy flow from the food web: Phytoplankton → Zooplankton → Sardine → Tuna/Gannet → Shark. Now evaluate each option:

• Option A: Gannet eats sardines, not tuna, so this is wrong.
• Option B: Sardines eat zooplankton, not gannets, so this is wrong.
• Option C: Phytoplankton are producers (get energy from sunlight), zooplankton eat phytoplankton, so this is wrong.
• Option D: Tuna preys on sardines, so energy flows from sardines to tuna, which matches the food web.

Answer:

D. Tuna get energy from sardines.