Final answer:
The gestation period of a dogfish shark ranges from 9-12 months.
Step-by-step explanation:
The gestation period of a dogfish shark is approximately 9-12 months.
Sharks are ovoviviparous, meaning that the fertilized eggs are retained in the mother's body and the embryos develop internally. The young are born alive and fully functional.
Some species of sharks have longer gestation periods than others, but for dogfish sharks, the pregnancy period ranges from 9-12 months.