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Define Nutritional Requirements for Extreme Environments?
Human beings have been able to survive and work under extreme environments of almost all regions of the earth, from poles to equator and also in space. Some of these places are visited for very brief periods due to inhospitable environment. An extreme environment can be defined as are environment where basic needs, like acquisition of food, shelter and protection, require extraordinary efforts. One important feature of these environments is that an error in judgment and behaviour can have serious, even fatal consequences. These environments can be natural, as well as, man-made and are listed in the Table.
When faced with hot, cold, high altitude (terrestrial heights above 2700 meters) or space environments, human beings either try to modify the microenvironment accordingly or physiologically adapt themselves to fit the environments or use a combination of these two strategies. Let us review these adaptive mechanisms.
Microorganisms and Plants can synthesize all of the 20 standard amino acids. Mammals, furthermore, cannot synthesize all 20 and must obtain some of them in their diet. Those amin
Removal of obturating material -Gutta percha . -Carrier bassed gutta perca. -silver points . - paste type. - obstructed fracture instrument .
Illustrate about Nervous System Functional unit of nervous system is neuron. Neuron is nerve cell. Information passes through neurons by nerve impulses. Nervous system corre
Changes in Animal Life during Xerosere Just like the hydrosere, there occur successive changes in animal life during the xerosere. A few mites are usually found associated wi
Functions of Respiratory Pigments As you have learnt in the preceding sub-sections, the pigments are the carrier of oxygen. In the nonexistence of respiratory pigments the blo
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Describe the terms diffusion, osmosis and filtration. Explain why each process is important for the human body.
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