The energy conversions that take place in living systems are governed by the same laws of thermodynamics that govern non-living systems.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

One of the purposes of transcription is to produce a sequence of bases that

Isotopes of the same element have differ in their