Name a time there was a change (higher or lower) in your budget for two goods. what were they? how did the change affect your consumption choices?

Answer and Explanation:

I went to the store to get wheat and a mat for myself. I thought I had sufficient money to purchase both the products but later on  somehow I realized that the amount of money I had was lesser than required and was not what I though would be enough for the purchase of both the products.

Therefore, I had to compromise on my mat as as my choice of wheat could not be compromised as I needed food for myself.

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.'