Question: in terms of their source of energy what is the difference between phytoplankton and zooplankton?
Answer: Key Differences Between Phytoplankton and Zooplankton Phytoplankton is the aquatic plants, Zooplankton is the small aquatic animals. ... Phytoplankton depends on sunlight for making their food, they primarily live on the surface of the water, while zooplankton lives in the darker and colder area of the water body.