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.
Why is the idea of modern human "races" is not considered a valid biological concept, and why is the idea of clinal variation more acceptable to biologists?
Neptune The eigth planet, Neptune, was discoveted in 1846 by astronomer Johann Gottfried Galle. We have already told you the story of its discovery in last. It is so f
State about the Peaty soils Peaty soils occur in humid regions and have an accumulation of high organic matter. Such peaty soils containing considerable amount of soluble salt
descibe the factors which decidethe broad area of scientific activity?
adding vector
Define the Nature of Sound This section is a recapitulation of what you have learnt in school. You would recall that sound waves consist of the longitudinal waves of alternate
Management of Water Resources Management: Management of Water Resources Management of water resources means a programme to provide an adequate supply of good quality of water
Define the Mechanism of Hormone Action Hormones affect cell function either by activating cyclic AMP (Adenosine monophosphate) mechanism or by activating genes. You may recall
Question 1 What is a balanced diet? How food exchanged list help in planning a balanced diet? Question 2 What are the clinical forms of vitamin A deficiency and explain any o
How do i make the simulator write a program for a Turing Machine to detect sequences of 1s and 0s that ends in “0”?
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