Zooplankton are tiny animals that feed on phytoplankton.
Many zooplankton are crustaceans.
Some crustaceans feed on phytoplankton.
Some crustaceans feed on
Options:
A) phytoplankton
B) fungi
C) refraction of light
D) heat energy
E) an organism's body
F) carbon
G) algae
H) salt and water.