By taking over the mechanism of the cell and this will eventually destroy the organism.
no it does not have vireses
No it does not.
yes the lichens are harmful but to some humans
No..
earthworms are not harmful to humans theyare just pink and slimmyNo. Worms that are harmful to humans are roundworms, flatworms and hookworms.
Phone radiation can be harmful to humans. It is harmful when the person is on the phone a lot.
They are not harmful to humans
Americium is harmful to humans because is very radioactive.
No they are not. In fact, humans are more harmful to them then they are to us.
Most geckos are not harmful to humans. They are generally shy and prefer to avoid interactions. Some geckos may bite if they feel threatened, but their bite is not toxic or dangerous to humans.
really harmful
yes all fumes are potentially harmful to humans