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Animal Kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYAnimal Kingdom3 Marks
Question
Differentiate between a diploblastic and a triploblastic animal.
✓

Answer

 
Diploblastic Animals
Triploblastic Animals
1.
 The cells are arranged in two embryonic layers- external ectoderm and internal endoderm.
The cells are arranged in two embryonic layers- external ectoderm, middle layer of mesoderm and internal endoderm.
2. Mesoglea is present between the ectoderm and the endoderm Mesoglea is absent. Instead, the mesoderm is present between the endoderm and the ectoderm.
3.
Examples: Cnidaria and Ctenophora.
Examples: Platyhelminthes to Chordata.

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