Write whether the following statements are true or false :
​​(a)​ Three important characteristics in performance of biosensors are selectivity, sensitivity and stability ​​
(b) ​Activated sludge process is one of the most common anaerobic sewage treatment method
​​(c) ​In a fermentor, impellors increase oxygen demand by producing high shear forces. ​​
(d)​ A pressure cycle is a type of air lift fermentor ​​
(e)​ Monoclonal antibodies are used extensively in diagnosis of haematopoietic cancers ​