EVERYDAY SCIENCE

Detailed explanation-1: -Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea.

Detailed explanation-2: -Diploblastic animals have two cell layers and they are outer ectoderm and inner endoderm. These animals don’t have the mesoderm whereas they have middle mesoglea which is an undifferentiated layer. Mesoglea is a jelly-like tissue present in between the ectoderm and endoderm layer.

Detailed explanation-3: -Mesoglea is present between the two layers of the diploblastic animals. Complete answer: Mesoglea-In humans and other triploblastic animals three embryonic layers are found: the outermost ectoderm, middle mesoderm and the innermost endoderm. All organs are derived from these three layers.

Detailed explanation-4: -The endoderm of diploblastic animals has true tissues and intestines. A non-living layer named mesoglea is present between ectoderm and endoderm. Mesoglea helps in protecting the gut lining and body. These animals do not develop organs.

Detailed explanation-5: -Mesenchyme is the correct answer.