The united states constitution forbids ex post facto laws true or false

That statement is true

ex post facto laws is the type of law that makes an act that was legal when committed became illegal or suddenly increase the punishment of a crime after it is being committed.
If our justice system adopted this concept, the court can basically trapped any person in united states into criminals. 

Energy and matter is converted through the food chain either when something is eaten or it dies naturally. Decompress then break down the dead organisms and release them back into the environment