I want to know the answer to the following question:
How many groups are defined in the superclass?
All the background I'm provided with is that "Traditional morphology-based or appearance-based systematics have usually given the Hexapoda the rank of superclass,:180 and identified four groups within it: insects (Ectognatha), springtails (Collembola), Protura, and Diplura, the latter three being grouped together as the Entognatha on the basis of internalized mouth parts.". Is that enough to answer the question?
Answer: yes