AP BIOLOGY

Detailed explanation-1: -Streamflow, or channel runoff, is the flow of water in streams and other channels, and is a major element of the water cycle. It is one component of the movement of water from the land to waterbodies, the other component being surface runoff.

Detailed explanation-2: -One method of classifying streams is through physical, hydrological, and biological characteristics. Using these features, streams can fall into one of three types: perennial, intermittent, and ephemeral.

Detailed explanation-3: -Lentic: Referring to standing-water habitats including lakes, ponds, and swamps (contrast with lotic). Lotic: Referring to flowing-water habitats including rivers, springs, and streams (contrast with lentic).

Detailed explanation-4: -A tributary is a freshwater stream that feeds into a larger stream or river. The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.