Biological
Cadmium sulfide is sometimes associated with sulfate reducing bacteria.
Read more about this topic: Cadmium Sulfide
Famous quotes containing the word biological:
“Man’s biological weakness is the condition of human culture.”
—Erich Fromm (1900–1980)
“Although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and reproduction.”
—The Columbia Encyclopedia, Fifth Edition, the first sentence of the article on “life” (based on wording in the First Edition, 1935)
“If the most significant characteristic of man is the complex of biological needs he shares with all members of his species, then the best lives for the writer to observe are those in which the role of natural necessity is clearest, namely, the lives of the very poor.”
—W.H. (Wystan Hugh)