A Cell Encounters a Change in Its Environment (Electrical or Heat)

Multiple Choice

A cell encounters a change in its environment (electrical or heat) that could be fatal. However, it is able to respond in a protective manner because this information is sent indirectly through the cell membrane to the nucleus where it stimulates the appropriate response. This is more likely a process known as

A) active transport.
B) chemomodulation.
C) phagocytosis.
D) signal transduction.