Which marine habitats would have the least access to primary producers? a. salt marshes and estuaries b. coral reefs and lagoons c. mangroves and intertidal zones d. deep sea and sea floor

It's speed of rotation.

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem