Which characteristic is typical of lentic ecosystems?

Lentic ecosystems are defined by their still or standing water bodies, such as ponds, lakes, and reservoirs. This characteristic distinguishes them from lotic ecosystems, which are characterized by flowing water, like rivers and streams. The calm nature of lentic environments supports a unique set of biological communities and ecological processes, allowing diverse species of plants and animals to thrive in a stable, often stratified habitat. In contrast, options that refer to rapid flowing waters, high salinity levels, or frequent tidal movements pertain to very different aquatic environments, such as rivers, estuaries, and marine ecosystems, which are not representative of lentic systems. Thus, still or standing water is a defining and critical feature of lentic ecosystems.