1. Light: Light is the most important and indispensable physicochemical, abiotic ecological factor without which life cannot exist. Organisms get light from the Sun, Moon, stars, lightning, volcanoes and bioluminescent organisms. Among this light energy from the Sun is the most important in nearly all ecosystems. It is the energy that is used by green plants (which contain chlorophyll) during [...]
In this article we will discuss about the metabolism, body’s input and output of energy in organisms with the help of suitable diagram. Metabolism of Energy: There is a continual exchange of energy between a living organism and its environment as in accordance with the principles of thermodynamics applied to non-living physical and chemical systems. There is a fundamental difference [...]
The sugar content of blood is not a passive constituent. Blood sugar level is found to exert enormous influence in regulating the functions of various tissues in different ways. The following is a brief summary: i. On Stomach: Low blood sugar stimulates gastric secretion and gastric movements. Hunger contractions are always stimulated by low sugar (as also by insulin injections). [...]