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Nervous Regulation
Nervous Regulation - The heart is regulated to a large extent through the central nervous system. The heart nerve branches from the vagus nerve from the medulla oblongata and the sympathetic nerve fibres from the spinal cord. The vagus nerves are cardiac inhibitory nerves. When ..
Biology - A Science of Exceptions
Physical, chemical and mathematical sciences follow a specific set of rules and regulations. They are governed by a set of laws such as the law of gravity, the laws of thermodynamics, the law of conservation of mass and so on. However, biological sciences, in the strict se..
Non-Governmental Efforts
Experts believe that for sustaining agriculture and maintaining the quality of environment at least 1/3 r d of the country's land should be under forest. Government effort and public co-operation are equally essential for raising and protecting fores..
Functions of fats
1) They are the chief energy storers of the body, which form an important source of energy during starvation or other emergencies. 2) Fats play a role in the absorption of fats soluble vitamins like vitamins A, D, E and K. 3) Steroids like cholesterol which are related to fats are import..
Pollution of Water
Pollution of the environment is a major global problem of today. It is heartening to note that in the last 25 years or so, scientists and environmentalists have created a great deal of awareness on environment pollution. Several national and international laws and charters and institutions now ..
Physical control methods
1. Quarantine regulations - Entry of diseased plants should be prevented. 2. Field sanitation - To destroy completely or partially the source of infection present in the soil. This is done by a) removal of diseased plant debris and their burning. b) use of chemical. c) crop rotation. ..
Biology - A Science of Exceptions
Physical, chemical and mathematical sciences follow a specific set of rules and regulations. They are governed by a set of laws such as the law of gravity, the laws of thermodynamics, the law of conservation of mass and so on. However, biological sciences, in the strict sense, d..
..Management of Wild Animals
Wild life management involves protection, preservation and perpetuation of species in their natural habitats. It involves the following approaches: a) Enactment of wild life legislations to regulate hunting. b) Species preservation to protect particular species. Example: Kaziranga sanctua..
Carbon dioxide production
a) Carbon dioxide is released back to the environment by respiration of producers and consumers b) Released by the decomposition of organic wastes and dead bodies by the action of bacteria and fungi on decay. c) Burning of wood and fossil fuels add considerable amount of carbon dioxide into the at..
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