Zooplankton are tiny animals that feed on what?
Options:
- (A) sunlight
- (B) vegetation
- (C) Energy
- (D) loose soil
- (E) plant life
- (F) diatoms
- (G) fungi
- (H) chemicals Let's solve this problem gradually.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Zooplankton are tiny animals that feed on phytoplankton. Diatoms are the predominant phytoplankton. Zooplankton are tiny animals that feed on diatoms. So the final answer is (F).