Some Tissues Have Only a Few Cells with the Specific

Multiple Choice

Some tissues have only a few cells with the specific receptors needed for a signal response.How can the tissue respond most efficiently to that signal?

A) Increase release of neurotransmitter.
B) Allow the signal to diffuse between cells via gap junctions.
C) Allow the circulatory system to carry the signal to other cells.
D) Increase gene expression for the receptor.
E) Increase the number of signaling molecules.