You’ve made the hypothesis that the steeper the slope the faster a ball will be rolling when it reaches the bottom. what should be your independent variable in an experiment testing this hypothesis a)how tall the slope is b)how steep the slope c)how fast the ball is rolling at the top d)how fast the ball is rolling at the bottom

answer; ///(b) it is composed of four protein chains and four heme groups;

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