Question 3 if two nations specialize according to their individual comparative advantages and engage in trade, then which of the following must be true?
A
Nations would be better off if they were self-sufficient.
B
If one nation gains from trade with the other nation, then the other nation will lose.
C. Both nations can consume beyond their individual production produce.
D. Both nations can consume only what they produce
E. Both nations will lose from trade
Pls help asap

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient

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Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.