| A: | White blood cells are enucleated and are relatively lesser in number which averages 6000-8000 mm-3 of blood |
| B: | Human heart is protected by a three walled membranous bag, pericardium |
| Assertion(A): | A decrease in lymphocyte count in the blood will lead to an increased susceptibility to infections. |
| Reason(R): | Lymphocytes are responsible for phagocytosis in innate immune response. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
| 1. | haemoglobin | 2. | Na+ |
| 3. | K+ | 4. | albumin |