Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Vaccination:
Now let us see how vaccination protects us from disease. We have mentioned above that the W.B.Cs. produce antibodies which neutralise the toxins produced by the invaders. These W.B.Cs. are of different kinds and each kind consists of millions of cells which recognise and combat a specific foreign invader. Once a class of W.B.Cs. has encountered a particular kind of invader, it develops memory and is thus trained to ward off future attacks. In this way the body becomes "immune" to that infection and the process is called immunisation. Thus, our body regularly develops natural immunity as a variety of fighting cells are produced by actual attacks of infectious agents. Artificial immunisation is a clever idea. It is done through "vaccination", that is by artificial introduction into the body of a weak infection, which triggers off a defence mechanism, and produces W.B.C. trained to combat that particular infection.
Mercury: Mercury, the planet nearest to the Sun, has long remained a mysterious body. Because .of the Sun's glare, it is difficult to see it clearly all the mare so becau
what properties does a desk have
describe the factors which decide the broad area of scientific activity?
Obesity : Generally, fat people think that their overweight is due to their constitution and for heredity. It could be true in some cases. But have you ever come across a fat labou
how do we arrange element in a periodic table
Genital and Reproductive Function: J.Y. is a 43-year-old woman who has detected a lump in the upper outer quadrant of her left breast while performing her monthly self-breast exam
Observe how a metal tyre is fitted on the wheel of bullock cart
Aldose-ketose isomerism We have already seen that in a monosaccharide either an aldehyde (-€HO) or a ketone (>C=O) group is present. The former is called as aldos
Reflexes: It is of interest to know, that all sensory information does not have to go to the - brain before we can react to a stimulus. Our responses to certain stimuli
Trans power : 20dBm Channel loss = 60dB We know that Received power (dBm) = Tx Power (dBm) + Tx Antenna Gain (dBi) + Rx Antenna Gain (dBi) - loss (db) as Tx and Rx antenna gains ar
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd