What is the significance of Mystacodon in the study of whale evolution?

The Evolutionary Journey of Whales From Land Predators to Ocean Giants

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Biology, Science, History
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9th - 12th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is the largest whale ever discovered.
It is the first whale to have baleen.
It is the first known toothed whale.
It is the earliest known mysticete.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was a major challenge in tracing the evolution of baleen in whales?
Baleen was only found in toothed whales.
Baleen was never present in ancient whales.
Baleen does not fossilize well.
Baleen is made of bones.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did Mystacodon likely feed according to recent studies?
By filter feeding with baleen.
By suction feeding from the seafloor.
By hunting large prey with sharp teeth.
By scavenging dead animals.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What oceanic change is believed to have influenced whale diversity?
The increase in ocean temperature.
The decrease in ocean salinity.
The rise of sea levels.
The formation of the Antarctic Circumpolar Current.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What feeding strategy might have been a transition between bite-and-hold and filter feeding?
Herbivorous grazing
Predatory hunting
Suction feeding
Scavenging
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What might have caused the shift towards filter-feeding as the dominant strategy?
The decrease in available prey.
The increase in ocean productivity.
The appearance of new predators.
The extinction of all toothed whales.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role did competition play in the evolution of baleen whales?
It led to the extinction of all mysticetes.
It forced whales to become herbivores.
It had no impact on whale evolution.
It favored larger, ocean-going species.
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