Unlike other substances involved in a chemical reaction, the enzyme is not consumed in the reaction. Was the lactase molecule used up(consumed) in the reaction? How can you tell?

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

there really is life in the deepest part