What extends down the length of the body and serves as the housing for the animal’s nervous system that begins in the brain?
A. chordate
B. hollow dorsal nerve chord
C. notochord
D. pharyngeal slit

I believe its B

Question

What extends down the length of the body and serves as the housing for the animal’s nervous system that begins in the brain? 
	A.	chordate
	B.	hollow dorsal nerve chord
	C.	notochord
	D.	pharyngeal slit


I believe its B

anonymous · Answer

@jim_thompson5910

jim_thompson5910 · Answer

hmm probably, the others seem off

D is definitely wrong since that's referring to feeding tubes I think

jim_thompson5910 · Answer

yeah found something here http://en.wikipedia.org/wiki/Dorsal_nerve_cord "The dorsal nerve cord is later modified in vertebrates into the central nervous system which is composed of the brain and spinal cord"

jim_thompson5910 · Answer

not a bio major, so not 100% sure