the manner in which several different ions and molecules move through a cell membrane is shown in the diagram above. for each ion or molecule, the relative concentration on each side of the membrane is indicated. which of the following accurately describes one of the movements taking place?

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome