Cockroach - A Representative Arthropod
. Three regions can be recognised in the body, namely a head, a thorax and an abdomen. The head is a region formed by the fusion of six embryonic segments covered by very hard exoskeletal plates called sclerites. The head is triangular in shape and it is held at right angles to rest of the body. Th..
Diagnostic Kits - Endoscopy
Endoscopy is an important tool for gastro enterologists and other specialists dealing with problems of the digestive tract. Ensoscopes are thin, flexible telescopes that allow trained specialists to examine most areas of the gut. At the end of the endoscope is a tiny television camera, which allows..
Spinal Cord
It is a collection of nervous tissue running along the back bone. It is, in fact, protected by the vertebral column. It is a continuation of the brain. It consists of a central canal that has cerebrospinal fluid that is continuous with the fluid in the brain. The canal is surrounded by an H-sh..
It is a collection of nervous tissue running along the back bone. It is, in fact, protected by the vertebral column. It is a continuation of the brain. It consists of a central canal that has cerebrospinal fluid that is continuous with the fluid in the brain. The canal is surrounded by an H-sh..Question 82
Question: What is geothermal energy? How can we generate electricity from this non-conventional source of energy? Answer: 'Geo' means earth and 'thermal' means heat. Thus geothermal energy is that heat energy obtained from hot rocks present inside the earth. This heat can be used as a so..
Question: What is geothermal energy? How can we generate electricity from this non-conventional source of energy? Answer: 'Geo' means earth and 'thermal' means heat. Thus geothermal energy is that heat energy obtained from hot rocks present inside the earth. This heat can be used as a so..Effect of ionosphere on sky wave propagation
Even before Sir Edward Appleton's pioneering work in 1925, it had been suspected that ionization of the upper parts of the Earth's atmosphere played a part in tile propagation of radio waves, particularly at high frequencies. Experimental work by Appleton showed that ..
Liver
It is the largest gland and is found in the upper part of the abdomen on the right side just below the diaphragm. Its secretion is called bile juice. It is alkaline and rich in organic (steroid) salts called the bile salts. The alkaline nature serves to neutralize the acidic pH..
It is the largest gland and is found in the upper part of the abdomen on the right side just below the diaphragm. Its secretion is called bile juice. It is alkaline and rich in organic (steroid) salts called the bile salts. The alkaline nature serves to neutralize the acidic pH..Structure
Tricuspid Valves The left auricle opens into the lower left ventricle. This opening is guarded by the bicuspid (having two flaps) or the mitral valve. The tricuspid and the bicuspid valves prevent backflow of blood into the auricles from the ventricles when the latter pump the blood into the blood ..
Tricuspid Valves The left auricle opens into the lower left ventricle. This opening is guarded by the bicuspid (having two flaps) or the mitral valve. The tricuspid and the bicuspid valves prevent backflow of blood into the auricles from the ventricles when the latter pump the blood into the blood ..Structure . This opening is guarded by the bicuspid (having two flaps) or the mitral valve. The tricuspid and the bicuspid valves prevent backflow of blood into the auricles from the ventricles when the latter pump the blood into the blood vessels. The deoxygenated blood from the different parts of..
. This opening is guarded by the bicuspid (having two flaps) or the mitral valve. The tricuspid and the bicuspid valves prevent backflow of blood into the auricles from the ventricles when the latter pump the blood into the blood vessels. The deoxygenated blood from the different parts of..upper part of the leg
The magnetic field due to a section of the solenoid which has been stretched out for clarity. Only the interior semi-circular part is shown. Notice how the circular loops between neighbouring turns tend to cancel. Solenoid is long wire wound in form of helix such that the length of sole..
The magnetic field due to a section of the solenoid which has been stretched out for clarity. Only the interior semi-circular part is shown. Notice how the circular loops between neighbouring turns tend to cancel. Solenoid is long wire wound in form of helix such that the length of sole..mechanical
Digestion - breaking down food into simpler forms. Digestion is both and chemical . The digestion may take place outside cells ( extracellular ) or within the cells ( intracellular ). Absorption - Taking in of food in the soluble forms into the tissues. The absorption may be passive (without ..
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