Answer: Sharks
Explanation:Sharks have a smaller population because they need to in order to survive on the big fish which has a smaller population than the smaller fish and so on
The organism that has the smallest population is Sharks.
A food chain has a hierarchy and in the order of lowest to highest they
include primary producers, primary consumers , secondary consumers and
tertiary consumers.
Their population however decreases from the lowest to highest in the level.
Primary producers such as plants always have the highest population as
they provide to the consumers while the tertiary consumers always have the
lowest population.
In this scenario, the plankton is the primary producer and the shark is the
tertiary consumer which means shark will have the smallest population.
Read more on https://brainly.com/question/16467538
