Where should lids be placed when opening a container during an aseptic procedure

answer: blah

explanation:

bc blah

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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