Unit #8 Exam Review Quiz

1. Unit #8 Exam Review Quiz Grade: «grade» «subject» Subject: «date» Date:

2. 1 Which of the following determines the loudness of a sound: A B C D

3. 2 Which 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. 3 A blue whale using sound for communication would probably create which of the following sounds A High pitched between 0 and 100 dB B Low pitched between 0 and 100 dB C Low pitched between 100 and 200 dB D High pitched between 100 and 200 dB

5. 4 Sea otters were hunted near extinction because: A Sea otters were considered pest near aquaculture farms B Sea otters have the most dense hair of any known animal C Sea otters lost most of their habitat due to kelp farming D Sea otters lost their major food souce (sea urchins) due to pollution

6. 5 Which of the following determines the pitch of a sound: A B C D

7. 6 True or False: Generally, baleen whales use lower pitch sound than toothed whales. True False

8. 7 All of the following are used by marine mammals to keep themselves warm, EXCEPT: A A large oil-filled liver B A thick layer of blubber C A high metabolism in smaller cetaceans D Countercurrent blood flow in the flukes and fins of cetaceans

9. 8 All 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

10. 9 Sea otters and polar bears are in which of the following orders: A Carnivera B Pinneped C Cetacean D Serinia

11. 10 Which of the following was the first cetacean (that we know of) that was severely depleted from whaling due to its slow-moving & surface dwelling habits: A Blue Whale B Bottle-nosed dolphin C Humpback Whale D Right/Bowhead Whale

12. 11 The 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

13. 12 Which of the following would best describe a sound that would travel a great distance underwater: A high pitched, high amplitude B low pitched, high amplitude C low pitched, low amplitude D high pitched, low amplitude

14. 13 The image below is of a: A manatee B dugong C baleen whale D sea lion

15. 14 A walrus uses which of the following to dig up bivalves in the sand A Tusks B Claws C Whiskers D Front flippers with vestigial nails

16. 15 Polar bears can be found in the __________ region(s) A Antarctic B Temperate C Equatorial D Arctic

17. 16 Pinnepeds feed mostly on A seals B kelp C squid & fish D plankton

18. 17 Which of the following sound waves represents the highest pitch sound: A B C D They are equal volume

19. 18 Why do large baleen whales use low frequency sound: A The low frequency sound is ideal for finding fatty copepods B They have long & solitary migrations & need to communicate over long distances C The lower frequency sounds are better for finding large & fatty prey D The low frequency sound is effective for short range communication within pods of whales

20. 19 Which order of mammals have made the most complete transition to aquatic life A Carnivore B Cetaceans C Serinia D Pinnepeds

21. 20 Dugongs can be found near: A Florida B New England C West Africa D Australia

22. 21 Cetaceans (dolphins/whales) look a lot like chondrichthyes, these similar structures are A homologous B evolutionary C analogous D caudal fins

23. 22 All of the following are true when comparing seals and sea lions, EXCEPT: A Sea lions have external ears B Anterior legs of seals are not useful for walking C Seals have external ears D Anterior legs of sea lions are useful for walking on land

24. 23 Which of the following sound waves represents the loudest sound: A B C D They are equal volume

25. 24 The 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

26. 25 Manatees and dugongs are in which of the following orders: A Pinniped B Cetacea C Odontoceti D Sirenia

27. 26 A loss of which of the following would prevent a common dolphin (toothed whale) from absorbing sound bouncing back during echolocation: A vocal cords B melon C mandibular fat D auditory bulbs

28. 27 Which of the following characteristics would you expect to find in a toothed whale A Relatively large in size for a cetacean B High pitched sound is used for echolocating food C The animal lives alone for the majority of its life D The animal migrates all over the globe

29. 28 Seals and sea lions received legal protection under the Marine Mammal Protection Act (MMPA) of ______________. A 1886 B 1911 C 1946 D 1972

30. 29 All of the following are true when considering sea otters, EXCEPT: A they have the most dense fur of any mammal B they are known for their use of tools C they are territorial D they use blubber to keep themselves warm and afloat

31. 30 Which 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

32. 31 The following image is of: A manatees B dugongs C baleen whales D toothed whales

33. 32 Which of the following is true about toothed whales, but not baleen whales: A Largest of the marine mammals B Long annual migrations C Use echolocation to find food D Often solitary

34. 33 Which of the following is used to create whistles and clicks in a cetacean: A blowhole B nasal cavity C phonic lips D melon

35. 34 All of the following are countries that still participate in whaling, EXCEPT: A Australia B Faroe Islands C Norway D Japan