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Explain the Scanning Electron Microscope
It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface characteristics rather than intracellular structures. A narrow beam of electrons scan back and forth, producing a three-dimensional image as electrons are reflected off the specimen's surface.
Though a variety of optical instruments are available for routine laboratory work, compound bright field microscope is the one commonly found in all biological laboratories. Let us get to know the different parts of this microscope.
Oogenesis in Mammals In mammals also the oogonial cells are derived from primordial germ cells. The multiplication phase, that is all of the oogonial divisions and transforma
Auxiliary Food Chains In addition to grazing and detritus food chains there are other auxiliary food chains operated through parasites and scavengers. Some parasitic food chai
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
Q. What do you mean by Diabetes Mellitus? Diabetes Mellitus as you know is a metabolic disorder, which is characterized by high blood sugar. It is a chronic disease condition,
what are the physical requirements to become a zoologist?
Diagnosis of lyme disease In endemic areas, Lyme disease is diagnosed by recognition of erythema migrans. IgG antibodies to B. burgdorferi are usually detectable 4 to 6 weeks a
What happens to respiratory system in a man going up a hill?
Explain about implant surgery Diagnosis and treatment planning for a patient who requires and is to receive dental implants. The actual process of dental implant placement begi
Q. Silent Myocardial Ischaemia? Ans. This deals primarily with those who have never had symptoms recognized as being of cardiac origin. Others, who have had recognized myo
How potassium is essential for the following physiological functions It is vital for photosynthesis. When K + ion is deficient, photosynthesis declines and respiration incr
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