| Which one of the followin pairs is not correctly matched? |
| a) | Streptomyces - Antibiotic | b) | Serratia - Drug Addiction |
| c) | Spirulina - Single cell protein | d) | Rhizobium - Biofertilizer |
| (d)Serratia is a harmful human pathogen, which has been known to cause urinary tract infections, wound infections, pneumonia. |