A) Ventral spinal chord
B) Dorsal heart
C) Pharyngeal gill slits
D) Blood flow in forward direction in ventral blood vessels
Correct Answer: C
Solution :
Chordate animals at some time in their life history exhibit the following three diagnostic characters (1) Presence of notochord. (2) Presence of dorsal tubular nerve cord. (3) Presence of gill clifts during development Beside these some other characters are: (a) ventral heart (b) Hepatic portal system.
You need to login to perform this action.
You will be redirected in
3 sec
