Final answer:
The statement is true; third degree burns destroy the epidermis, dermis, and often parts of the hypodermis, necessitating medical intervention for healing.
Step-by-step explanation:
In third degree burns, both the epidermis and dermis are fully destroyed, and often, the damage extends into parts of the hypodermis as well. As a result, true regeneration of the skin is not possible without medical intervention. Therefore, the statement that in third degree burns the epidermis and dermis (and often parts of the hypodermis) are destroyed is true.