Fact 1: Zooplankton are tiny animals that feed on phytoplankton. Fact 2: Many zooplankton are crustaceans. Given the two facts above, answer the question "What can feed on phytoplankton?" with the following options: - producers - phytoplankton - passenger pigeons - bacteria - tiny crustaceans - the Sun - honeybees - parasites
A:
tiny crustaceans