Question

A biological agent of the disease is

• A. Vitamin deficiency
• B. Virus
• C. Spores
• D. Carbohydrate deficiency

Answer 1

The correct option is B Virus

Biological agents which cause disease are known as pathogens that are the micro-organisms which when successfully infect the human body, multiply and produce toxins in incubation period which interfere with the normal functioning of the body and cause disease. A virus is a small, infectious, biological agent that replicates only inside the living cells of other organisms.

So, the correct answer is 'Virus'.