Hypothetically, if congress passed and the president signed a new law making the actions of hillary clinton, in regard to her home email server, illegal, such a law would be unconstitutional because

The answer is It was an ex-post facto law  

Explanation:

The meaning of a facto law is a law that applies to violations that occurred under the steady gaze of the law was passed. A case of an ex post facto law is a law go in 1994 that applies to acts that happened in 1989. Ex post facto laws retroactively change the tenets of proof in a criminal case, retroactively modify the meaning of a wrongdoing, retroactively increment the discipline for a criminal demonstration, or rebuff direct that was legitimate when perpetrated. ex-post facto law. A law that makes unlawful a demonstration that was lawful when submitted, builds the punishments for an infraction after it has been submitted, or changes the principles of proof to make conviction less demanding. The Constitution restricts the making of ex-post facto law.

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; dogs;