4. Cells are largely made of organic compounds that contain carbon. Which property of the carbon atom makes it an essential component of organic compounds?
A. Carbon is a nonmetal.
B. Carbon oxidizes to carbon dioxide.
C. Carbon is solid at room temperature.
D. Carbon can form four covalent bonds.

Carbon is a Non-metal

Explanation:

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.