Transcript japan whale

Unit #9 Review Quiz
«grade»
Grade:
Aquatic Science
Subject:
«date»
Date:
1
Which of the following was the first cetacean
(that we know of) that was severely depleted from whaling due to its slowmoving & surface dwelling habits:
A
Blue Whale
B
Bottle-nosed dolphin
C
Humpback Whale
D
Right/Bowhead Whale
2
Zero decibels (dB) in air is approximately _________ dB in water.
A
-26
B
0
C
26
D
100
3
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
4
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
5
Which of the following is NOT used in the formation/interpretation of sound
A
Melon focussing outgoing sound
B
Fatty lower jaw receiving sound waves
C
Caudal fin drumming on the swim bladder
D
Vocal chords creating a vibration to be sent out
6
Which species is the largest (physically) of marine
mammals
A
seals
B
toothed whales
C
walruses
D
baleen whales
7
Polar bears can be found in the __________ region(s)
A
Antarctic
B
Temperate
C
Equatorial
D
Arctic
8
Sea otters are considered a capstone/keystone species.
This means:
A
without this species the ecosystem will become destabilized
B
this species is responsible for keeping the bottom of the food chain
stable
C
this species is considered an apex predator
D
as this species grows in population size, so does the overall
population of the food chain
9
All of the following are possible side effects of
emitting low frequency sounds into the oceans EXCEPT:
A
Mass stranding (200+ organisms) of marine mammals
B
Gas bubbles forming in the bloodstream, organs, and joints of
aquatic mammals as a result of acute decompression syndrome
C
Cranial and pulmonary bleeding within aquatic mammals
D
energy from the sound pushing gas bubbles into the bloodstream
through the tissue of the lungs
10
All of the following are characteristics of Pinnepeds, EXCEPT:
A
They have the most dense fur of any mammal
B
They are predominately carnivores
C
They are streamline and excellent swimmers
D
Examples of pinnepeds are seals, sea lions, and walruses
11
A baleen is/are
A
large oval teeth
B
an organ used for echolocation
C
large, flat teeth for chewing plants
D
a series of fibrous plates
12
All of the following countries still participate in
whaling, EXCEPT:
A
Japan
B
Norway
C
New Zealand
D
Faroe Island
13
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
14
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
15
Cetaceans (dolphins/whales) look a lot like
chondrichthyes, these similar structures are
A
homologous
B
evolutionary
C
analogous
D
caudal fins
16
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
17
True or False: Generally, baleen whales use lower
pitch sound than toothed whales.
True
False
18
Which of the following sound waves represents the
highest pitch sound:
A
B
C
D
They are equal volume
19
Which order of mammals have made the most
complete transition to aquatic life
A
Carnivore
B
Cetaceans
C
Serinia
D
Pinnepeds
20
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
21
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)
22
Sea otters and polar bears are in which of the
following orders:
A
Carnivera
B
Pinneped
C
Cetacean
D
Serinia
23
A
B
C
D
Which of the following determines the loudness of a
sound:
24
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
25
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
26
Dugongs can be found near:
A
Florida
B
New England
C
West Africa
D
Australia
27
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
28
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
29
The image below is of a:
A
manatee
B
dugong
C
baleen whale
D
sea lion
30
Which of the following sound waves represents the
loudness sound:
A
B
C
D
They are equal volume
31
Which of the following is used by Cetaceans to keep
warm:
A
Rete mirabile
B
Baleen
C
Oil-filled liver
D
Blubber
32
Which of the following words best describes the sound produced by an
echolocating (looking for food) toothed whale:
A
Click
B
Whistle
C
Groan
D
Squeak