Non-living and acellular layer is the feature of
Triploblastic organisms
Diploblastic organisms
Both A and B
None of the above
Diploblastic animals: Such animals develop two germ layers as inner endoderm and outer ectoderm. There is a non-cellular layer present between endoderm and ectoderm called the mesoglea. For example, coelenterates.
Hence, Diploblastic animals is the correct answer.