Biology, 20.02.2020 17:59, maustin5323

Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? Larvae use notochords to .
A) aid in swimming; adults are sessile and thus no longer propel themselves.
B) stiffen their bodies; in adults, the notochord is replaced by a column of bone.
C) induce tissue differentiation; in adults, tissue is already differentiated.
D) organize their nervous systems; adults' nervous systems are fully developed and do not change.

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Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? La...