Ramon works as a self-employed ride share driver. – Ramon is a cash-basis taxpayer who materially participates in the operation of his business. He did not make any payments that would require him to file Form 1099. – Ramon uses business code 485990. – Ramon had no prior year unallowed losses.

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///supply is elastic, and demand is inelastic;