Define and explain how each relates to lactase chemical reaction
enzyme, substrate, active site, rate of reaction, activation energy

i think the miocene epoch spans the time from 23 million to 12 million years ago.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !