If you save your money, you will be able to buy a car before you graduate from high school.

what kind of phrase is "if you save your money"?

a. adverbial clause
b. adjective clause
c. prepositional phrase

a. by using fur or clothes to trap heat energy near the body

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