Fossils Answers
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How do organisms form carbon films?
A
Organisms turn into rock.B
Residue is left on rocks when organisms decay.C
Hollow forms are left in sediment by decaying organisms.D
Organisms leave evidence of their activities, such as footprints.2
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Which part of an organism is preserved in cast and mold fossils?
A
skinB
boneC
muscleD
soft tissue3
Which type of fossils form from hardening sediment?
A
castsB
tar pit fossilsC
carbon filmsD
amber fossils4
Which statement explains something that the fossil record indicates?
A
Earth is is still a very young planetB
Mammals have always existed on Earth.C
Mass extinctions have occurred several times on Earth.D
The amount of water on Earth has decreased over time.5
Some fossils provide evidence to suggest that Earth's climate has changed over time.What information can scientists obtain from these fossils?
A
temperaturesB
number of species that existedC
movement of continentsD
cause of mass extinctions6
Study the timeline.
A
Humans have only recently existed on Earth.B
Organisms originally lived only on land.C
Life on Earth started before water formed on Earth.D
Multicellular life evolved before complex single-celled life.7
Why is still water an ideal environment for the formation of mold and cast fossils?
A
Sediment builds up over organisms.B
Sediment turns organisms into rock.C
Hard tissue decays under sediment.D
Soft tissue is preserved under sediment.8
Which feature do amber fossils have that mold fossils do not?
A
preserved soft tissueB
organisms turned into rockC
solid copies of the original organismD
impressions of hard tissue left by organisms9
Which is a way that paleontologists have contributed to humans' understanding of the history of life?
A
They found evidence that climate has not changed significantly.B
They grouped organisms by the period in which they existed.C
They discovered that the first humans lived with dinosaurs.D
They learned that life has existed since Earth was created.10
Study the timeline.
A
130 million years agoB
1.5 billion years agoC
2.5 billion years agoD
4.1 billion years agoDid you find these answers helpful?
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