Q. 43.8( 4 Votes )

Name any two phys

Answer :

Physiological barriers are the first line of defense against pathogens. The acid in the stomach (HCl), the saliva in the mouth and tears in the eyes are examples of physiological barriers.


Select two disease resistant crop varieties from the list of crop varieties given below:

Himgiri, Pusa Gaurav, Pusa Komal, Pusa A-4

Himgiri and Pusa Komal are disease resistant crop varieties.

Pusa komal is resistant to bacterial blight, whereas Himgiri is resistant to leaf rust.

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