In an aquatic ecosystem, the algae and phytoplankton are responsible for primary productivity. all but one factor
usually influences the primary productivity of a marine ecosystem. that is
water salinity
light intensity.
water temperature.
available nutrients.

Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. what symptoms would you expect brian to have? a. inability to see in the dark b. difficulty determining colors c. difficulty determining shapes and outlines d. inability to see in all light conditions