On Diagram A, draw an arrow showing what happens at subduction zones. Study the key on Diagram B. Draw magnetic stripes and arrows to show changes in
Earth's magnetic field as found in magnetic particles in rocks on the ocean floor.
Then, draw arrows to show seafloor spreading.
Diagram A
Diagram B
Mid-ocean ridge
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Key
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Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.