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Title: Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? Post by: Dugg on Nov 16, 2017 Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them?
A) Larvae use notochords to aid in swimming; adults are sessile and, thus, no longer need notochords. B) Larvae use notochords to stiffen their bodies; in adults, the notochord is replaced by a column of bone. C) Larvae use notochords to induce tissue differentiation; in adults, tissue is already differentiated. D) Larvae use notochords to organize their nervous systems; adults' nervous systems are fully developed and do not change. Title: Re: Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have ... Post by: mastema on Nov 16, 2017 Content hidden
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