Biology
Answer
| Sl. No. | Secretion | Excretion |
|---|---|---|
| 1. | This is the third step of urine formation. | This is the final step of urine formation. |
| 2. | After reabsorption, some ions are added to the filtrate to form urine. This is called secretion. | In excretion, urine formed in the kidneys is collected in the urinary bladder and once it is full, urine is passed out through the Urethra. |