How does the circulatory system help the muscle system? A. eliminate waste

B. provide oxygen

C. digest muscle

The circulatory system helps the muscle system by providing energy(B)

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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