As a biology student, the number one option is to become a doctor. But other than that, there are various other courses you can complete, for example

1. MBBS- Bachelor of Medicine and Bachelor of Surgery

2. BDS- Bachelor of Dental Surgery

3. BAMS- bachelor of Ayurvedic medicine and Surgery

4. BHMS- Bachelor of homeopathic medicine and surgery

5. Bachelor of Unani medicine and surgery

6. Bachelor of science (in various disciplines like microbiology, radiology, zoology, botany, chemistry, physics. agriculture. veterinary science etc

7. Bachelor of physiotherapy

8. Bachelor of pharmacy

9. Bachelor in Lab Technology

10. Bachelor of occupational therapy

etc.