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Cetaceans
Cetaceans
January 1, 2020
by
vanarsdale_mark
Welcome to the Cetacean's Quiz
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1.
Which of the following provides evidence of whales terrestrial evolution
Vestigial hind limb bones
Walking ankle (astragalus) bones
A spinal cord that moves up and down like land mammals rather than side to side like fish
All of these are correct
2.
One way to attached a tracking tag to a large humpback whale is to
Surgically implant the tag
Anesthetize the whale and then glue it to their skin
Use a fast boat, a long carbon fiber pole, and a suction cup
Use a large collar strung around the whales neck
3.
Scientists have learned some pretty amazing things about the hearts of Blue whales, such as
Blue whales suffer heart attacks at alarming rates
Blue whales can modulate their heart rate as they dive from as high as 34 beats per minute to as few as 2 beats per minute
Blue whales hearts are unusually small for their size
Blue whale hearts beat unusually fast
4.
Bowhead whales are important and iconic Alaskan whales.
Winter in the Bering Sea and migrate north as summer approaches to the Cukchi and Buefort Sea.
Winter in the Arctic Ocean and migrate south into the Chukchi and Bering Sea.
Winter in Baja Mexico and migrate north as as summer approaches to the Bering Sea.
Winter in Hawaii and migrate north as summer approaches into the Gulf of Alaska
5.
The length and stiffness of Mysticeti whales baleen varies greatly.
Bowhead whales use their short baleen to suck up mouthfuls of sediment and filter out the crustaceans living in the mud.
Gray whales whales use their short baleen to suck up mouthfuls of sediment and filter out the crustaceans living in the mud.
Bowhead whales use their long baleen plants to blow bubbles, creating a bubble net .
Blue whales use echolocation to locate large schools of krill and then "gulp them up."
6.
Which of the following is
not
true about Odontoceti whales
They have a double nostril blow hole
They are highly social animals living in maternally lead "pods"
They have concave skulls
They have teeth
7.
Right whales are some of the most endangered whales on the planet.
Hunting by Yankee whalers
Blunt force drama from ship strikes and entanglement in fishing gear
Infectious disease from untreated sewage
Unusually aggressive shark populations
8.
Mysticeti whales share all of the physical and behavioral features
except
Convex skulls with baleen plates hanging down
Filter feeding
The ability to echolocate prey
Long seasonal migrations
9.
In the North Pacific Humpack whales "sing."
Different populations of whales (from different areas) were mixing
Each whale's song is completely unique
Female humpback whales prefer higher pitched songs
Whale songs are random and confused with little in the way of structure
10.
An elaborate, coordinated feeding strategy used uniquely by humpback whales in the North Pacific
Gulping
Skimming
Lunging
Bubble netting
11.
Baleen whales are sometimes referred to as "ecosystem engineers" for their ability to build food webs.
By feeding at depth and releasing fecal plumes near the surface -- which supports plankton growth
By consuming large quantities of oxygen gas and carrying it to depth
By skimming the surface and removing plastic debris
By hosting a wide variety of parasitic organisms on their large bodies
12.
Transient orca whales
Time is Up!