_____ have a cartilaginous skull and axial rod of cartilage derived from the notochord, but lack jaws and vertebrae.

• Rays
• Hagfishes
• None of these
• Sharks

Related MCQs

• Axial lengths and inter-axial angles of a unit cell of crystals are known as _____?
• In adult lamprey the Notochord is _____?
• A bone that lies in between the skull & postcranial skeleton is _____?
• Cervical vertebrae in a typical mammal is ______?
• Presence of cartilaginous ring in respiratory tract acts as?
• Lack of increase in pollution is due to _____?
• In winter, animal die _____ lack of food.
• Some photosynthetic organisms contain chloroplasts that lack photosystem II yet can survive. The best way to detect the "lack of photosystem II" in these organisms would be ______?
• The movie "Jaws" is about which animal?
• Jaws are absent in which of the following classes?