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.
describe the factors which decide the broad area of scientific activity
What are 6 types of neuroglial cells?
Explain the Functions of Mineralocorticoids Aldosterone is the name given to the main physiological mineralocorticoid. As you go through the functions listed below, you will re
Mouth-to-Mouth Artificial Respiration : If a casualty does not start breathing by the above process, artificial respiration must be started immediately to get a supply of air into
Explain Fate of the Neurotransmitter Postsynaptic membranes bind the neurotransmitters by an active process. The chemicals keep moving in and out of the membrane. The synapse t
Surfaces of colloidal fractions of clay minerals The surfaces of colloidal fractions of clay minerals and humus are responsible for the cation and anion exchanges between soil
Determine the hierarchical order of soil taxanomy Order: At this highest level of generalisation, the soils are distinguished on the basis of the degree of horizon developme
Why does gravity effect people?
Define Platelets Blood platelets, the third blood cells are the smallest formed by the pinching of a very large bone marrow cell called megakaryocyte. Platelets literally mean
describe the typical conditions necessary for fossil formation?
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