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Introduction to Sharks

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Questions	Answers
Sharks have skeletons made up of what?	cartilage
True or False Sharks have a swim bladder.	false
What are dermal denticles?	teeth-like skin
True or False Toilets injure more people than sharks do each year.	true
Which shark extends its jaw to reach food, almost like a hand?	goblin shark
What is the average number of humans killed by sharks each year?	one
Which shark is usually found with a copepod attached to its eye?	Greenland shark