What Is a Valid Distinction Between a Blastocoel,an Archenteron,and a Coelom

question 12

Multiple Choice

What is a valid distinction between a blastocoel,an archenteron,and a coelom?

• A)During development these cavities appear in the sequence blastocoel,archenteron,coelom.
• B)The blastocoel forms the cavity of the digestive tract,the archenteron forms the chest cavity,and the coelom forms the cavity of the digestive tract.
• C)The coelom is bounded only by an external germ layer,the archenteron is bounded by inner and outer layers of germ cells,and the blastocoel is a cavity within the mesoderm.
• D)The coelom has a direct opening to the outside of the embryo whereas the other two cavities do not.

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Definitions:

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