Virtually any object could be physical evidence under the right circumstances. true or false?

True

A physical evidence is the one which proves a fact about the crime. It can be any biological or non-biological entity that is collected from the crime scene or some where else and over which analysis and comparison with similar entity, can help in conviction or eviction in the court of law.  

This statement is true because physical evidences substantiates or supports the circumstances that could have occurred in the past.

life would be meaningless without memes

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products