These mechanisms are simply the limiting factors, it may be man-made or the natural one that tries to keep the population of the species balanced. The main aim of the limiting factor is to balance the interaction between the species in order to stop the other species overgrowing. The limiting factor could be lack of food, forest fire etc.
In any ecosystem, there are factors to control populations. In a stream, the predators of a certain organism will help keep populations checked. Moreover, the limited resources, such as space and food, will keep the population from growing out of control.
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Guttation is the process of loss of water from the surface of leaves in the form of liquid drops... Guttation occurs when root pressure is high and transpiration is low.
