Multiple choice

The organism which spreads a disease from an infected person to a healthy person is called ______.

  1. vector

  2. viral

  3. scalar

  4. congenital

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A vector is an organism (like a mosquito) that transmits a disease from an infected person to a healthy person. Viral refers to viruses, scalar is a physics term unrelated to biology, and congenital means present from birth.