How does each cell accomplish a wide variety of activities?
a.
the plasma membrane divides up the tasks.
b.
all cell parts are similar.
c.
molecules are transported in and out.
d.
the organelles have specialized functions.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.