How do fraternal twins form ?

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

cuz he's blad

explanation:

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