Class 12th Biology 2014 Set3 Delhi Board Paper Solution
Question 2
Name any two types of cells that act as 'cellular barriers' to provide innate immunity in humans.
Answer
Leukocytes (WBC) and natural killer in the blood are two types of cells that act as 'cellular barriers' to provide innate immunity in humans.
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(a) Ovary _______________
(b) Anther _______________
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(d) Importance of light to plants
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