Which statement accurately compares in the human circulatory system to cells in the human nervous system

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

According to these anatomical structures which two animals are probably most closely related