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Explain the Microscope?
Microscope is a powerful and crucial basic tool in the field of microbiology. Microbiology, as we have already studied in our theory Course, is the science dealing with the organisms too small to be seen with unaided eye. The existence of microbial life to the world was introduced first by Antony Van Leeuwenhoek in 1673, with the help of simple, crude, self-made, single-lens microscope having a magnification of about 300.
Over the years, microscopes have evolved to increase the magnification several thousand fold. Modern day microscopes are either light microscopes or electron microscopes. Light microscopes use either visible light or ultraviolet rays to illuminate specimens. These are generally used to look at intact cells. On the other hand, electron microscopes use electron beams instead of light rays and electromagnets instead of lenses. These are generally used to look at internal structures or details of cell surface.
Explain biological aspects of nutrition Traditionally nutritionists have focused largely (or almost fully) on . However, we have realized over the years, that physiological bio
Phases of Respiration in Animals The procedures of respiration in these animals have the following phases. i) External respiration is usually described as breathing. It inv
What is a phenotype? A phenotype is each observable characteristic of a living being conditioned by its genes. Some phenotypes may be changed by nongenetic factors (for instanc
Explain Two major causes of severe Protein Energy Malnutrition? Two major causes of severe PEM are diluted milk formulae and infections, especially diarrhoea in poor communiti
Q. Explain about Glycemic Index? Although the use of exchange lists is still popular for planning diabetic diets, it has been realized in recent years that in exchange lists th
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Q. What are the structures that form the external ear? What is its function? The internal ear comprises the auricle or pinna and the auditory canal its function is to conduct t
Q. How is reproduction done in beings of the class Reptilia? These beings reproduce sexually through internal fecundation by means of copulation between female and male individ
What are the parts of Nervous system Nervous system is divided into three main parts: 1) The brain and spinal cord or Central Nervous System (CNS). 2) The nerves or Peri
What is complete transposition of arteries? Complete transposition of the great arteries (dTGA): The atria and ventricles are connected appropriately i.e., the right atrium dra
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