The Day the Mesozoic Died
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Last updated over 6 years ago
14 questions
Note from the author:
Ottawa High School Curriculum 2019 Biology textbook McDougal Littell ed 2008
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Last Name, First Name
Last Name, First Name
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Class Period
Class Period
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What is the K-T boundary? Please use complete sentences to convey your answer.
What is the K-T boundary? Please use complete sentences to convey your answer.
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If the rocks outside of Gubbio, Italy used to be at the bottom of an ocean, how are they now part of a mountain? Use complete sentences to answer this question.
If the rocks outside of Gubbio, Italy used to be at the bottom of an ocean, how are they now part of a mountain? Use complete sentences to answer this question.
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Describe the differences scientists saw in the foraminifera found in rock layers above (after) and below (before) the K-T boundary. Use complete sentences as you answer this question.
Describe the differences scientists saw in the foraminifera found in rock layers above (after) and below (before) the K-T boundary. Use complete sentences as you answer this question.
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Which of the following events are possible sources of high levels of iridium in sediments?
Which of the following events are possible sources of high levels of iridium in sediments?
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Which of the following pieces of evidence prompted researchers to abandon the hypothesis that a supernova caused the high levels of iridium in the K-T layer?
Which of the following pieces of evidence prompted researchers to abandon the hypothesis that a supernova caused the high levels of iridium in the K-T layer?
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The entire scientific community accepted the asteroid hypothesis after Dr. Alvarez published his paper showing high iridium levels at the K-T boundary.
The entire scientific community accepted the asteroid hypothesis after Dr. Alvarez published his paper showing high iridium levels at the K-T boundary.
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Explain why the scientific community was slow to accept the asteroid impact hypothesis. Use complete sentences as you answer this question.
Explain why the scientific community was slow to accept the asteroid impact hypothesis. Use complete sentences as you answer this question.
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Many different pieces of evidence lead to the formation of the asteroid hypothesis and provided support for the hypothesis. Place the following events in chronological order from earlier to later.
Many different pieces of evidence lead to the formation of the asteroid hypothesis and provided support for the hypothesis. Place the following events in chronological order from earlier to later.
- determining that rocks taken from the Chicxulub crater are the same age as the K-T boundary
- identifying spherules and shocked quartz in Haiti
- finding tsunami deposits in the Brazos River Basin, Texas
- finding that an isotope of plutonium is not in the K-T boundary layer
- finding high levels of iridium in the K-T boundary layer
- observing differences in foraminifera fossils above and below the K-T boundary layer
- discovering gravitational field anomalies on the Yucatan peninsula, from surveys done for oil exploration
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How could an asteroid impact kill off so many different species?
How could an asteroid impact kill off so many different species?
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Why do we define the K-T event as a mass extinction event?
Why do we define the K-T event as a mass extinction event?
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Which scientific disciplines contributed to the research that led to the impact hypothesis?
Which scientific disciplines contributed to the research that led to the impact hypothesis?
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What did Dr. Carroll mean at the end of the film when he said, "It's not always the survival of the fittest; sometimes it's the survival of the luckiest?" Be sure to write in complete sentences to convey your answer.
What did Dr. Carroll mean at the end of the film when he said, "It's not always the survival of the fittest; sometimes it's the survival of the luckiest?" Be sure to write in complete sentences to convey your answer.