All of the chordates have these slits as embryos
The muscle cells divide through Mitosis, a cellular division comprised of several other substeps.
The final step of the cell division is the cytokinesis by which two new cells are formed from cell with a multiple number of nucleus after the replication process. This steps follow the telophase.
Explanation:
2 females can have a baby with the same Gene's by mating with the same Male. especially if the females are sisters.