| Vitamin | F. G. Hopkins, Cosimir Funk |
| Vitamin-A | Mc. Collum |
| Vitamin-B | Mc. Collum |
| Vitamin-C | Holst |
| Vitamin-D | Mc. Collum |
| Sulpha drugs | Dagmanck (Dogmanck) |
| Streptomycin | Selman Waksmann |
| Heart Transplantation | Christian Bernard |
| Homoeopathy | Hahnemann |
| Malaria parasite and treatment | Ronald Ross |
| Diarrhoea and treatment of plague | Kitajato |
| Sex hormone | Stenach |
| Open heart surgery | Waltallilehak |
| Contraceptive pills | Pincus |
| First test tube baby | Edwards and Stepto |
| Electrocardiograph | Iwanyaan |
| Antigen | Karl Landsteiner |
| RNA | James Watson and Arther Arg |
| DNA | James Watson and Crick |
| Insulin | Banting |
| Chloroform | Harrison and Sympson |
| Vaccine of chicken pox | Edward Jenner |
| T.B. bacteria | Robert Koch |
| Diabetes | Banting |
| Penicillin | Alexander Flemming |
| Polio vaccine | Johan E. Salk |
| BGC | Guerin Calmatte |
| Bacteria | Luwenhook- Leeuwenhoek |
| Blood transfer | Karl Landsteiner |
| Largest and heaviest mammal | Blue whale |
| Largest land mammal | African elephant |
| Largest living reptile | Sea turtle (Tortoise) |
| Largest living bird | Ostrich |
| Largest snake | Python |
| Largest monkey | Gorilla |
| Smallest bird | Humming-bird |
| Smallest mammal | Shrew |
| Largest egg | Ostrich's egg |
| Fastest running animal | Cheetah (Panther) |
| Fastest flying bird | Spine tailed Swift |