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- 1. Multiple Choice
All the fossils ever discovered on Earth
Geologic Time Scale
Fossil record
Biological evolution
- 2. Multiple Choice
A chart that divides Earth’s history into units
Geologic Time Scale
Fossil record
Biological evolution
- 3. Multiple Choice
The change over time in populations of related
organisms
Geologic Time Scale
Fossil record
Biological evolution
- 4. Multiple Choice
Scientists believe that the Hyracotherium fossil from 55 mya is related to todays horse because...
the fur on the fossil is the same color as todays horses.
the teeth on fossils in between Hyracotherium and todays horse show a gradual change.
the toes on fossils in between Hyracotherium and todays horse show a gradual change.
there is evidence that the environment changed from 55 mya to today
- 5. Multiple Choice
Understanding the process of radioactive decay is part of absolute-age dating.
True
False
- 6. Multiple Choice
In relative-age dating, the age of species found in sedimentary rock layers is found by...
the age of igneous rock nearby.
looking at how deeply it is buried.
- 7. Multiple Choice
Fossil evidence shows that single celled organisms lived on Earth 3.4 billion years ago.
True
False
- 8. Multiple Choice
Geologic time scales divide Earth’s history into different units of time.
True
False
- 9. Multiple Choice
An approximate age of a species is figured out by using absolute-age dating.
True
False
- 10. Multiple Choice
In relative-age dating, one rock layer is either older or younger than a nearby rock layer.
True
False
- 11. Multiple Choice
Relative-age dating is especially useful in studying rock layers that have been moved or disturbed.
True
False
- 12. Multiple Choice
Looking at the order in which rock layers were deposited is an important part of ...
absolute-age dating
relative-age dating
- 13. Multiple Choice
Calculating the age of igneous rock is part of the process used in absolute-age dating.
True
False
- 14. Multiple Choice
The most precise type of dating used for determining a fossil’s age is...
absolute-age dating
relative-age dating
- 15. Multiple Choice
In this type of fossil formation, original tissues of the organism can be preserved.
mineralization
carbonization
molds & casts
original material
- 16. Multiple Choice
In this type of fossil formation, sediment fills an impression left in the sand.
mineralization
carbonization
casts
original material
- 17. Multiple Choice
In this type of fossil formation, the organism is buried in the sand.
mineralization
carbonization
molds & casts
original material
- 18. Multiple Choice
In this type of fossil formation, the dead organism is compressed over time.
mineralization
carbonization
molds & casts
original material
- 19. Multiple Choice
This type of fossil formation can result in a fossil of wood.
mineralization
carbonization
molds & casts
original material
- 20. Multiple Choice
In this type of fossil formation, the process requires mud or sand.
mineralization
carbonization
molds & casts
trace fossils
- 21. Multiple Choice
Example of original material.
Mammoths frozen in ice
A fossil of wood
Saber-toothed tiger in tar pits
Insects in amber
- 22. Multiple Choice
In this type of fossil formation, an impression of an organism is left in rock.
mineralization
carbonization
molds
trace fossils
- 23. Multiple Choice
Pressure drives off gases and liquids, leaving an outline of plant leaves, fish, and insects.
mineralization
carbonization
molds & casts
trace fossils
- 24. Multiple Choice
Minerals in water replace an organism’s original material and harden into rock.
mineralization
carbonization
molds & casts
trace fossils
- 25. Multiple Choice
In this type of fossil formation, tracks fill with sediment that hardens.
mineralization
carbonization
molds & casts
trace fossils
- 26. Multiple Choice
A fossil copy of the organism in a rock.
mineralization
carbonization
casts
trace fossils
- 27. Multiple Choice
Preserves an organism’s movement.
mineralization
carbonization
molds & casts
trace fossils
- 28. Multiple Choice
The longest era is...
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 29. Multiple Choice
The era known for simple organisms is...
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 30. Multiple Choice
The era known as the age of the dinosaurs is...
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 31. Multiple Choice
The era known as the age of mammals is...
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 32. Multiple Choice
Homo sapiens (humans) are found in the ______ era.
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 33. Multiple Choice
The era known for the trilobite is...
Cenozoic
Mesozoic
Paleozoic
Precambrian
- 34. Multiple Choice
When the last individual organism of a species dies, _____________ has occurred.
extinction
evolution
a fossil
an era
- 35. Multiple Choice
This occurs when many species die off within a few million years or less.
environmental change
mass extinction
radiation of life
- 36. Multiple Choice
Extinctions can occur if __________ changes quickly.
the fossil record
an isotope
a rock formation
the environment
- 37. Multiple Choice
The fossil record contains clear evidence of...
extinctions
new species over time
- Answer choicesTagsAnswer choicesTags