1. a state lottery has a daily drawing to form a four-digit number. the digits 1 through 9 are randomly selected for each of the four digits. for each selection any one of the digits 1 through 9 are possible. what is the probability to the nearest hundredth of the four-digit number having at least one 3?

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.'

answertrue;

the answer to the question :

which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity

is:

managing credit and ensuring the money supply's liquidity