Adam Smith coined the term "invisible hand" to mean: a. a metaphorical hand that leads individuals to promote self-interest by p
ursuing social interest. b. a metaphorical hand that leads individuals to promote social interest by pursuing self-interest. c. a physical hand that leads individuals to promote social interest by pursuing self-interest. d. a physical hand that leads individuals to promote self-interest by pursuing social interest.
Explanation: Adam Smith's theory of an invisible hand is a metaphor and therefore has nothing to do with a physical hand. In it self it's a theory that shows how in a free market economy, individuals with self-interest operating through a system of mutual interdependence, promotes the general benefit and good of society, mostly without any idea of the larger effect of their self-interested actions. A metaphorical hand that leads individuals to promote social interest by pursuing self-interest, option B, is therefore correct.
This type of relationship is where all organisms involved benefit from the interaction. The relationship can be obligatory (where the organisms cannot live independent of each other) or can be facultative (where they can also live independent of each other). In lichen, this relationship is facultative.
