Table 1. The average number of EdU-positive sells per ciliated pit in studied species.

Species	Rhamphostomella ovata		Aquiloniella scabra		Electra pilosa
Polypide age	Young	Adult	Young	Adult	Young	Adult
Number of studied polypides	12	9	11	8	10	14
Number of studied ciliated pits	109	99	68	67	79	134
Average number of EdU-positive cells per ciliated pit (±SE)	13.7 ± 0.21	8.7 ± 0.18	5.2 ± 0.15	3.4 ± 0.07	3.7 ± 0.17	1.8 ± 0.09

Note:

“Young” polypides belong to the 1st and 2nd age classes, “adult” polypides belong to 4th and older age classes. SE, standard error.