in the nerves, sodium and pottasium ions move from low to high concentration. This example represents

How does the carbon cycle involve an exchange of carbon

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

Organize the word parts according to where they appear in a medical term.