MCQ
Immunization is provided by:
- AImmune bodies
- BVaccines
- CMedicines
- DAntibiotics
Explanation:
Immunization provides resistance to a particular disease by prior activation of an immune response.
It may be natural or artificial. Natural immunization is provided through the placental cord by the mother and artificial immunization is acquired by the process like vaccines.
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$R$ : It is the occurrence of horizontal zonation in the ecosystem.
$R$ - With the help of $PCR$ thousand of $DNA$ copies are formed