yes the lichens are harmful but to some humans
earthworms are not harmful to humans theyare just pink and slimmyNo. Worms that are harmful to humans are roundworms, flatworms and hookworms.
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.
yes all fumes are potentially harmful to humans
There are many harmful effects of goat on humans. For humans that are allergic to goats they can potentially die.
harmful
no it is not harmful to us
Ticks are often harmful to humans. For instance, the sheep tick could cause Lyme disease in humans.
No they are harmless to humans
It is not harmful.