Plz 20pts 7. if the u. s. increases the tariff on all peanuts by 15%, peanuts will be select the best answer from the choices provided. a. cheaper in the u. s. b. more expensive in the u. s. c. more expensive outside the u. s. d. the same price in the u. s.

It would be B

Tariff in other words mean tax so if you increases the tax on peanuts by 15% it would make the peanuts more expensive.

Hope this helped

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'