An experiment is completed that attempts to simulate active transport in a cell. Models of cell structures with an internal solution concentration of 40% are placed in a solution of 20%
concentration. The resulting concentrations after a 24-hour time period are shown in the table.

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.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.