Next it was found that it was physiologically and structurally the same in the plant, that it was the living part of the plant, that which manifested the life and did the work in vegetable as well as in animal organisms. ↗
People are not the only interesting organism on earth. From the point of view of scientific or commercial value, there are lots of interesting organisms. ↗
In specific circumstances the period of aging decline can set in earlier in a particular organ than in the organism as a whole which, in a certain general or theoretical sense, is left a cripple or invalid. ↗