Question
Biology Question on Kingdom Animalia
Which one of the following is a matching pair of a body feature and the animal possessing it?
A
Ventral central nervous system - Leech
B
Pharyngeal gill slits absent in embryo - Chameleon
C
Ventral heart - Scorpion
D
Post-anal tail - Octopus
Answer
Ventral central nervous system - Leech
Explanation
Solution
Leech possesses a ventral central nervous system. Scorpion has a dorsal heart. Pharyngeal gill slits and post- anal tail are characteristic features of chordates. Chameleon is a chordate, so it possesses pharyngeal gill- slits in embryonic stage. Octopus is a non-chordate.