What is one way scientists acquire data about the earth's interior? > by observing and recording the earth's orbit around the sun > by studying the size and frequency of volcanoes on the earth's surface > by studying how seismic waves generated by earthquakes travel through the earth > by studying the motion of continents and tectonic plates

>By studying how seismic waves generated by earthquakes travel through the earth

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.

the endomembrane system i think