Lots of

a fossilized shell with thin rings indicates what?

poor environmental conditions

good environmental conditions

nothing, because rings cannot be used to determine environmental conditions

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.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.