1. Unit #9 Quiz #4 Grade: «grade» Subject: Aquatic Science Date: «date»

2. 1Which of the following is used by cetaceans to focus/project sounds for echolocation/communication: A The melon B The fatty lower jaw C The vocal cords D The hammer and anvil of the ear

3. 2Which of the following is considered a solitary animal: A Blue Whale (baleen whale) B Common Dolphin (toothed whale) C Sea Otter (Carnivora) D Fur Seal (Pinniped)

4. 3Which of the following determines the loudness of a sound: A B C D

5. 4Which order of mammals have made the most complete transition to aquatic life A Carnivore B Cetaceans C Serinia D Pinnepeds

6. 5True or False: Generally, baleen whales use lower pitch sound than toothed whales. True False

7. 6A fin whale (baleen whale) will use sound for all of the following, EXCEPT: A Communication over great distaces B Communication with offspring C Echolocating food D Communication with potential mates

8. 7Sound is used by marine animals for all of the following, EXCEPT: A Acceleration B Predation C Finding food D Communication

9. 8The root of the word mammal comes from the fact that mammals have A More than 3 chambers in their heart B Fur that covers most of their body C The ability to give live birth D Mammary glands

10. 9Which of the following is used by cetaceans to receive sound bouncing back from echolocation: A The melon B The fatty lower jaw C The vocal cords D The hammer and anvil of the ear

11. 10Which of the following is used by cetaceans to generate sound: A The melon B The fatty lower jaw C The vocal cords D The hammer and anvil of the ear

12. 11Which of the following is a Pinneped A sea lion B dolphin C polar bear D otter

13. 12True of False: Baleen whales dive deeper than toothed whales in search of food. True False

14. 13The International Whaling Commission (IWC) was originally established in 1942 for which of the following reasons: A To prevent the slaughter of marine mammals B To regulate the amount of whaling in order to prevent "over fishing" C To prevent the "fishing" of endangered animals such as sea otters D To assist indigenous peoples in for their right to slaughter whales, even when they are considered endangered

15. 14All of the following are characteristics of mammals, EXCEPT: A They are viviparous B They nurse their young C They are ectothermic D They all have hair/fur at some point in their lives

16. 15Which of the following determines the pitch of a sound: A B C D