The Traditional View of Cnidarians Relative to Germ Layers Is

question 55

Multiple Choice

The traditional view of cnidarians relative to germ layers is that cnidaria possess

• A)only one germ layer,the ectoderm,that differentiates into the two tissue layers.
• B)two germ layers,ectoderm and mesoderm.
• C)two germ layers,endoderm and mesoderm.
• D)two germ layers,ectoderm and endoderm.
• E)definitely all three germ layers including the mesoglea as it is derived from ectoderm.