The law of demand states that, other things equal, Multiple Choice price and quantity demanded are inversely related. the larger the number of buyers in a market, the lower will be product price. price and quantity demanded are directly related. consumers will buy more of a product at high prices than at low prices.

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.'

the third answer is correct.

answerblank(1); fixed interval; blank(2) fixed ratio;

answer(8,000.)