Which element is found in proteins and nucleic acids but not in carbohydrates

well, you see. the answer to your question is quite simple. the thing that is big, powerful, and over 9,000 is your mom.

satellites are frequently used to make observations of the orbit on earth

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