Final answer:
Sharks can have up to 5 rows of teeth that they continuously shed and replace, and the correct answer to the student's question is A) Teeth.
Step-by-step explanation:
Sharks can have as many as 5 rows of teeth, which fall out and grow back. The correct answer to the question is A) Teeth. Sharks are well-known for their powerful jaws and multiple rows of sharp, saw-like teeth. Unlike bony fish, sharks belong to the class Chondrichthyes, which is characterized by a cartilaginous skeleton rather than a bony one. Shark teeth are highly adapted to their diet, with some having dense flattened teeth for crushing prey like mollusks and crustaceans, while others have needle-like teeth for gripping fish, or even serrated teeth for cutting larger prey. An interesting fact about shark teeth is that they are continuously shed and replaced throughout the shark's life, with some sharks shedding up to 35,000 teeth in a lifetime.