वातावरणीय सरसफाइ, महामारी विज्ञान र प्रतिरक्षा

प्रश्न

• Persons with blood group A posses ?

  मध्यम

• Passive immunity is obtained through injecting ?

  मध्यम

• Which one helps in differentiation of cells of immune system ?

  मध्यम

• Passive immunity is ?

  मध्यम

• O blood group is universal donor because the blood has ?

  मध्यम