Question

Diploblastic animals have

• A. ectoderm, endoderm and mesoderm
• B. ectoderm and mesoderm
• C. ectoderm, endoderm and mesoglea in pouches
• D. ectoderm, endoderm and mesoglea

Answer 1

The correct option is D ectoderm, endoderm and mesoglea

Diploblastic animals have outer ectoderm and inner endoderm. They do not have mesoderm instead they have middle mesoglea which is an undifferentiated layer. Mesoglea is present only in diploblastic animals.

Triploblastic animals have cells arranged in three layers ectoderm, endoderm and mesoderm.