If you and I agree to exchange four ginger snaps for one chocolate chip cookie, then it must be true that
a. we are both at least as well off as we were before
b. I am better off than I was before, but you are not
c. you are better off than you were before, but I am not
d. we are both better off than before
e. we are both worse off than before
Question 2
Comparative advantage is
a. the ability of an individual to specialize and produce a greater amount of some good than can another individual
b. the number of units of one good given up in order to acquire something
c. the ability of an individual to produce a good at a lower opportunity cost than some other individual can
d. an expression for the amount of labor a particular individual needs to produce a fixed amount of capital goods
e. a reference to an individual having the greatest opportunity cost of producing the good and produces it with the fewest resources
Countercurrent heat exchange in dolphin flippers promotes conservation of body heat.
There are multiple pathways for heat exchange between organisms and the environment.
True-color image of layers of haze in Titan's atmosphere.
A heat exchange vest that uses ice packs for cooling
The RecA strand exchange reaction as shown from single-molecule studies
Forces affecting capillary exchange