Question

Phytoplankton are the main primary producers on land.

Answer 1

Phytoplankton serve as the major primary producers in the marine ecosystem.

Step-by-step explanation:

I have no idea what you're asking but this is what i can tell you. They're not on land though.

Answer 2

false

Step-by-step explanation:

Phytoplankton are from the water and not found on land.