Question: what are the six characteristics of the human body plan?
Answer: 6 basic features humans share with other vertebrates. - tube within a tube body plan. ... 
tube within a tube body plan. inner tube: mouth to anus, respiratory and digestive organs. ... 
bilateral symmetry. ... 
dorsal hollow nerve cord. ... 
notochord and vertebrae. ... 
segmentation. ... 
pharyngeal pouches.