Polar bears 5. How do the zooplankton gain energy? square

Zooplankton gain energy through the process of photosynthesis or by consuming other organisms. Photosynthesis is the process by which certain types of zooplankton, such as phytoplankton, use sunlight, carbon dioxide, and water to produce glucose and oxygen. This glucose serves as their source of energy. Other zooplankton, such as zooplankton that are not photosynthetic, obtain energy by consuming phytoplankton or other zooplankton.