Animal Kingdom Question 42
Question: Hemichordates have now been placed with the non-chordates, close to echinoderms, because true
Options:
A) notochord is absent.
B) pharyngeal gill-slits are lacking.
C) dorsal nerve cord is absent.
D) eart is lacking.
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Hemichordates have now been placed with the non-chordates because true notochord is absent in them but a buccal diverticulum is present in pre-oral region which is often called stomochord.
BETA
