Destroyer Mistak-tunicate notochord

[113zami]

this time I think I cought a mistake unless someone explains otherwise...I hope

it says in question #42 in the explanations last sentence in the 2008 edition "the amphioxus and tunicates do not loose their notocord"

but I checked Campbell bio text on page 632 5th edition, it says
"the adult tunicate scarcely resembles a chordate. It displays no trace of a notochord, nor is there a nerve cord or tail. Only the pharyngeal slits suggest a link to other chordates. But all four chordate trademarks are manifest in the larval form of some groups of tunicates."

so the tunicates do loose their notochord by the time they're adult

anyone has explanation for this?? thanks

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[DRHOYA]

I just looked in Destroyer. However, I think the trick is that Amphioxus and Tunicates are the two rares that are Chordates, but are not vertebrates. They are chordates b/c of the notochord. I don't think there is an error?? Destroyer could be referring to embryonic development of the Amphioxus/Tunicates, and Campbell referring to the adult?

 

[113zami]

👍 got it, i was probably overthinking stuff