Outstanding stock of the tamarisk, inc. included 44000 shares of $5 par common stock and 2 shares of 5%, $10 par non-cumulative preferred stock. in 2016, tamarisk declared and paid dividends of $4400. in 2017, tamarisk declared and paid dividends of $13200. how much of the 2017 dividend was distributed to preferred shareholders?

a and c

explanation:

a) both were commissioned explorers

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.'