Jennifer makes cupcakes to sell at the local farmers market along with her own cookbook which she recently finished creating. On a recent Saturday, Jennifer sold all 473 cupcakes she made at a cost of $2.50 each. The cost of all ingredients used to make the cupcakes was $97.82. Jennifer only sold 27 cookbooks for $18 each, with the costs of production and licensing costing her $2,200. The Farmers market charged her $200 for use of the booth for the entire day. Required:
What is Jennifer's profitability?

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.

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.'

answer; operating revenues;