Question
Biology Question on Kingdom Animalia
A chordate character is
A
gills
B
spiracles
C
post-anal tail
D
chitinous exoskeleton.
Answer
post-anal tail
Explanation
Solution
The diagnostic characters of chordates are notochord, dorsal hollow nerve cord, pharyngeal slits and post anal tail. Tail is the part of the body behind the cloacal or anal opening. It contains skeletal elements, muscles, blood vessels and nerves but no viscera. It provides much of propulsive force in aquatic species. The tail is reduced or absent in the adults of some chordates.