Only the water of marine ecosystems contains dissolved salt. Please select the best answer from the choices provided T F.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

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

voluntary muscles are controlled by the cerebellum.