Question

Write the aquatic organisms in order of who eats whom starting from producer and form a chain of at least three steps. What name is given to such a chain is an ecosystem and what name is given to each stage.

Answer 1

phytoplankton ( producer ) -> Zooplankton (primary consumer) -> small fish (secondary consumer) -> big fish ( tertiary consumer)



you can see this in 'Lentic' type of fresh water ecosystem which means 'ecosystem in slowly moving water' example in pond, lake

Answer 2

aquatic plants -small fish- large fish