A lotic ecosystem is characterized by flowing water environments.
Key features include unidirectional movement of water.
Let's examine the provided options:
Based on the definition, a river is the only option representing a lotic ecosystem.
Given below are two statements:
Statement I: Ecosystems are closed to flow of energy, materials and biota and are tightly bound in space and time.
Statement II: There are five dynamic interactive controls, (i.e., local climate, supply of resources, functional groups of organisms, disturbance regimes and anthropogenic activities) regulating ecosystem processes.
In the light of the above statements, choose the correct answer from the options given below: