If an organism used glycolysis (Embden-Meyerhof-Parnas pathway) to break down glucose and produce ATP but was unable to subsequently use fermentation or an electron transport chain (respiration), what problem would develop?

NAD+ would not be able to regenerate and glycolysis would stop.

Explanation:

During glycolysis, two NAD+ molecules become reduced to NADH.

If no fermentation or respiration occurred, NADH would accumulate and NAD+ would exhaust, so glycolysis would stop.

explanation:

yes you are doing it right great gob

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.