n a living thing that has (or can develop) the ability to act or function independently. organisms (plants and animals) that live at or near the bottom of a sea. a plant or animal that is atypically small. an organism that depends on complex organic substances for nutrition.
RIVER TILLINGBOURNE. The River Tillingbourne is just 11 miles long running along the south side of the North Downs to join the River Wey at Guildford. Its source is near Tilling Springs to the north of Leith Hill and the catchment is situated on sandstone which has a low rate of weathering.ishing Breaks offer brown trout dry fly and nymph fishing in the county of Surrey. Surrey might not at first glance be much of a river county but it actually has nineteen classified rivers, including the River Thames.
The source of the river tends to be close to the watershed which occupies the highest ground around the basin. The journey of the river is then downhill to the sea. Example: River Tees: rises on Cross Fell,seen below, that rises to 890m. The sources of the Tees is 130m below the peak. The path the river follows from its source to mouth is known as the river's course. When studying rivers we often divide it into 3 main sections, the upper course; middle course and lower course.