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Define age related changes in Immune mechanisms
The immune competence decreases with age. This affects the cell-mediated and humoral immunity. We will learn about these aspects later in Unit 3. The thymus involutes (roll inwards), there is an increase in T cell auto reactivity and autoantibody titre. This makes the elderly more susceptible to infections. The severity of ageing can be reduced by good nutrition, regular physical exercises and mental tranquility.
Botany: In the Bronze and the Iron Ages, agriculture became the principal mode of production of man in all lands. It is, thus, not surprising that in India, botany and elementa
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Ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) have ribose and deoxyribose as the pentose sugar, respectively. They also differ, to some extent, in possession of nit
Assessment is the process of collecting information to find out what students are learning. As we have examined different instructional models throughout this course we have learne
In Pursuit of Starlight: The easiest method of studying light from a cosmic object is to collect it through a telescope and record it on a photographic plate. photographic plat
What is clay minerals The fraction of secondary minerals is often mixed with primary minerals and oxides of iron, aluminium and silicon and has a size of less than 0.002
Question: The Law of the Sea Convention came into force in 1994. Art.56(1)provides the coastal state with sovereign rights for the purpose of exploring and exploiting, conservi
Explain the Common Tests during Pregnancy Pregnancy, as you may have realized, is a period of physiological stress. To ensure a successful pregnancy, few common tests are recom
Explain Abnormalities due to Changes in Serum Electrolytes The intracellular and extracellular electrolyte concentration difference is responsible for the resting membrane pot
Q.What are the two forms of oxygen found in the atmosphere? The two forms of oxygen found in the atmosphere are: (i) Diatomic molecular form with chemical formula O 2 . (i
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