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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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Dugg Dugg
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6 years ago
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.
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Biological Science, Canadian Edition

Biological Science, Canadian Edition


Edition: 2nd
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mastemamastema
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6 years ago
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Dugg Author
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6 years ago
Thanks for your help!!
Holly72492
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
KaylenePig
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2 hours ago
Thank you, thank you, thank you!
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