B. I think thats right :/
Enzymes are biological catalysts – they speed up chemical reactions. Enzymes are required for most of the chemical reactions that occur in organisms . These reactions occur in the breakdown of chemical molecules, which we see in the digestive system . ... Enzymes are proteins that have a complex 3D-shape.
A search method employed by two or more people overlapping separate line searches forming a grid.
Not to sure tho hope this helps
Minerals move downward through soils in a process called leaching.
God bless!