Question

what is a vector according to grade 9 biology chapter 13 why do we fall ill ?

Answer 1

Answer:

The organisms that spreads a disease by carrying pathogens from one place to another is called vector.

Example : Mosquito are vectors that carries pathogens like protozoa.

Answer 2

Answer:

• The organisms that spread or carry pathogens from one place to another, from infected person to healthy person is called vector. Example, mosquito, housefly etc.