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Quiz #1

Quiz #1. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. The defining characteristic of an animal in the class Chondrichthyes is:. A. aggressive behavior. B. a cartilaginous skeleton. C. a lineagethat goes back hundreds of millions of years. D.

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Quiz #1

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  1. Quiz #1 Grade: «grade» Aquatic Science Subject: «date» Date:

  2. 1 The defining characteristic of an animal in the class Chondrichthyes is: A aggressive behavior B a cartilaginous skeleton C a lineagethat goes back hundreds of millions of years D the constant shedding & regrowing of teeth

  3. 2 The tiger shark has which type of caudal fin: A homocercal B heterocercal C dorsal prominent D ventral prominent

  4. 3 All of the following are in the subclass of Elasmobrachii, EXCEPT: A sharks B rays C chimeras D skates

  5. 4 Sharks have a very streamline shape that is called: A Coelomate B Psuedocoelomate C Pentameric D Fusiform

  6. 5 Which of the following is NOT a characteristic of Chimeras A They have 6 teeth that are constantly replaced B They have 6 teeth that are permanent and used for grinding shelled inverts C They have only a single gill slit D They have fewer organs than a shark or a ray.

  7. 6 A spiracle on a sting ray is located A near the nostrils B behind the eyes C in the middle of the back D directly anterior of the caudal fin/tail

  8. 7 Both subclasses of chondrichthyes had their radiation event: A Cambrian B Devonian C Cretaceous D Tertiary

  9. 8 Chondrichthyes use which of the following to help with bouyancy. A oil-filled liver B gas bladder C swim bladder D blubber

  10. 9 Which of the following does NOT shed many teeth in its lifetime A Tiger Shark B Manta Ray C Chimera D Great White Shark

  11. 10 "Chondrichthyes" means A "bone" "fish" B "aggressive" "fish" C "cartilage" "fish" D "hollow" "fish"

  12. 11 Scientists have discovered scales of chondrichthyes that date back to the ____________ period. A Cambrian B Silurian C Ordovician D Quaternary

  13. 12 Many sharks must constantly move so that they can continually wash oxygenated water over their gills. These sharks have which of the following respiratory systems: A Two Pump B Ram Ventilation C Spiracles D Lobed Lungs

  14. 13 Cetaceans (dolphins/whales) look a lot like chondrichthyes, these similar structures are A homologous B evolutionary C analogous D caudal fins

  15. 14 Chondrichthyes have ______________ scales. A Placoid B Ganoid C cycloid D ctenoid

  16. 15 True or False: The class chondrichthyes includes the largest animals to ever exist on the planet. True False

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