Describe the role water and oxygen play in the human body?​

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

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