What are examples of primary production?

Primary production refers to the process by which autotrophs, such as plants and phytoplankton, convert inorganic carbon (typically from carbon dioxide) into organic matter through photosynthesis. Examples include the growth of terrestrial plants like trees and grasses, as well as aquatic primary producers like algae and seaweed. These organisms form the base of the food web, providing energy for herbivores and subsequently for higher trophic levels.