animals such as mosquitoes and houseflies
MERCURY
It contains pathogens which can spread disease.
sulphur dy oxide......so2
carrier
Vector :)
Mosquitos do!!
rats
A pathogen is a disease carrying organism.
A leper is a person who carries the disease of leprosy.
An organism that carries disease to another possible host is a vector or carrier.
The mosquito carries the disease known as malaria.
The Red blood cells carry oxygen to the muscles, and I believe the blood itself carries waste and substances to cells. White Blood cells fight disease.