| Assertion (A): | During urination, urine is prevented from flowing reverse into the ureter. |
| Reason (R): | Urethral sphincters relax during urination. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
| Assertion (A): | The primary function of sweat is to facilitate a cooling effect on body surface. |
| Reason (R): | Sweat excretes out NaCl and small amount of urea also. |
| 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. | Both (A) and (R) are False. |