In effect, the only major changes required for a pregnant female to go into labor and finish with the birth of her offspring are: $(1)$ the increased production of gap junctions between uterine smooth muscle cells, which allow the uterus to contract as a unit; $(2)$ the increased production of signal molecule receptors $($such as oxytocin receptors$)$ that allow the presence of signal molecules to trigger uterine contractions; and $(3)$ the increasing production of these signal molecules.$$True or false