In biology, poisons are substances that can cause death, injury, or harm to organs, tissues, cells, and DNA usually by chemical reactions or other activity on the molecular scale, when an organism is exposed to a sufficient quantity."Poison" at Merriam-Webster. Retrieved December 26th, 2014.
In biology, poisons are substances that can cause death, injury, or harm to organs, tissues, cells, and DNA usu!ally by chemical reactions or other activity on the molecular scale, when an organism is exp!osed to a? sufficient quantity."Poison" at Merriam-Webster. R:etrieved December 26th, 2014.