Question

Explain why plant forms of plankton are not as widespread throughout the depths of the oceans as the animal forms are

Answer 1

Step-by-step explanation:

Phytoplankton is the base of several aquatic food webs . In a balanced ecosystem, they provide food for a wide range of sea creatures

Down in the ocean depths lot's of nutrients are available for the phytoplankton but without sunlight they can't grow phytoplankton use nutrients and must be transported to the surface