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What is Barfoed's test and its principle?
This test is a specific test for monosaccharides.
Principle
This test is also a copper reduction test but differs from Fehling's and Benedict's test in the medium of reduction. The reduction takes place in acidic medium and unlike Benedict's and Fehling's test where we learnt that reduction takes place in alkaline medium. Only strong reducing agents can reduce cupric ions in acidic medium and since monosaccharides are strong reducing agents, they give this test.
Sympatric speciation can be regarded as speciation where parent species gives rise to a daughter species without the individuals of a species being separated by space or territory.
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History Past and present history of cardiovascular problems of patient & family. History of chest pain, shortness of breath, fatigue, abnormal skin colour, dizziness, vertigo
identify structural modifiactions of the stomach and small intestine walls that enhance the digestive processes in these regions
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