Afully functioning enzyme molecule is arranged in a complex three-dimensional shape. this shape determines the

This shape determines the specific type of molecule it interacts with  during a reaction.

Explanation:

An enzyme can be described as a protein which catalyzes a reaction. Like the other proteins, an enzyme has a three-dimensional structure so that it can perform its function effectively. The structure of an enzyme helps a substrate to find an enzyme and the substrate gets locked in the active site of the enzyme. The structure of an enzyme is specific to molecules which helps it to catalyze the right reactions.

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