Biology

The correct answer is: C.It contains the receptor for the signaling molecule.

For a cell to respond to a particular signaling molecule, it must have the appropriate receptor for that molecule, which allows it to detect and respond to the signal. The other options are not necessary conditions for the cell's response:

A.It is in the heart muscle: While certain signaling molecules may specifically affect heart muscle cells, the cell doesn't need to be in the heart muscle f...