Rishikesh is famous for the production of
Antibiotics
Heavy electricals
Fertilizers
Transistorized radios
The letter $T$ in $T-$lymphocyte refers to
The mast cells secrete the following substance
A person sufferring from malaria feel fever when
The spread of cancerous cells to distant sites is termed as
Assertion : Escherichia coli, Shigella sp. and Salmonella sp. are all responsible for diarrhoeal diseases.
Reason : Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured.