The brainstem/ pancreas/ liver controls the vital functions of the body

How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Where does the information about where each transcription factor binds originate?