what does cholera cause
diarrhoea
what is tuberculosis caused by
different bacterium, which damages the lungs resulting in coughing blood
which type of diseases are tuberculosis and cholera
communicable diseases
what is Chalara dieback
it is a disease of ash trees caused by fungus
what is malaria
a disease caused by protists
what are viruses
they are not true organisms because they do not have a cellular structure
how do viruses spread
they multiply by infecting a cell and taking over the cells DNA copying processes to make a new viruses
what does the human immunodeficiency do
it attacks and destroys white blood cells
what is an ulcer
where bacteria attacks the stomach lining