An important abiotic factor affecting a shrub community is the * A) type of shrub species present

B) amount of annual rainfall

C) number of predatory animals present

D) Availability of autotrophic organisms

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