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Biology-Related Homework Help Genetics and Developmental Biology Topic started by: rivera5454 on Jul 17, 2012



Title: In triploblastic animals, the inner lining of the digestive tract is derived from____?
Post by: rivera5454 on Jul 17, 2012
I understand that the difference between diploblastic and triploblastic animals is the one extra germ layer, the mesoderm. But I was under the impression that the endoderm forms the gut. Here are the answers I have to choose from:

A) Ectoderm
B) Mesoderm
C) Endoderm
D) Pseudocoelom
E) Coelom


Title: In triploblastic animals, the inner lining of the digestive tract is derived from____?
Post by: lgdaniels on Jul 17, 2012
Body covering - (from ectoderm)

Digestive tract - (from endoderm)

Tissue layer - lining coelom

internal organs - (from mesoderm)

Coelomates such as annelids have a true coelom, a body cavity completely lined by tissue derived from mesoderm

So. correct answer is C. endoderm