Differentiate the following and give examples of each:
(a) Innate and acquired immunity (b) Active and passive immunity
The following are some well-known abbreviations, which have been
used in this chapter. Expand each one to its full form:
(a) MALT (b) CMI (c) AIDS (d) NACO (e) HIV
Discuss with your teacher what does ‘a suitable gene’ means, in the
context of DNA vaccines.
How does the transmission of each of the following diseases take place?
(a) Amoebiasis (b) Malaria (c) Ascariasis (d) Pneumonia
In which way has the study of biology helped us to control infectious
diseases?
What are the various public health measures, which you would suggest
as safeguard against infectious diseases?
Using various resources such as your school Library or the internet
and discussions with your teacher, trace the evolutionary stages of
any one animal, say horse.
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