f99a56df_Intertabrae_Chart__7
[0] Annelida [1] Closed system Aortic arches Dorsal and ventral blood vessels [2] Skin [3] Mouth,pharynx, esophagus, crop, gizzard, intestine, anus [4] Hermaphroditic [5] Nephridia 2 per segment [6] Ventral nerve cord with a small anterior brain [8] Longitudinal and circular muscles [7] 
None
S k e l e t a l
S p i c u l e s
N o n e
S o m e c o n t a i n s h e l l s
E x o s k e l e t o n m a d e o f c h i t i n
Intertabrae Chart
7