Why does the Ctenophora is a minor phylum

What does Ctenophora mean?

Phylum Ctenophora

Phylum-Ctenophora

Ctenophora shows affinity with

Ctenophora shows affinity with

Which of the following belongs to a minor phylum?

Which of the following belongs to a minor phylum.

What are the characteristics of phylum Ctenophora.

Herdmania does not has most of chordate characters in adult stage. Then why it is placed in phylum chordates.