AnswersHS Earth and Space Science Sem. 1Fossils

Fossils Answers

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1
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Study the timeline.

Question illustration
A
130 million years ago
B
1.5 billion years ago
C
2.5 billion years ago
D
4.1 billion years ago
2
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Which feature do amber fossils have that mold fossils do not?

A
preserved soft tissue
B
organisms turned into rock
C
solid copies of the original organism
D
impressions of hard tissue left by organisms
3

Which correctly lists three materials that preserve soft tissues in fossils?

A
amber, minerals, and sediment
B
minerals, permafrost, and amber
C
permafrost, amber, and tar
D
sediment, minerals, and tar
4

Which statement explains something that the fossil record indicates?

A
Earth is is still a very young planet
B
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

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.
6

The image shows a fossil that is hard like rock but that resembles a tree.

Question illustration
A
This fossil reveals the activities of an organism.
B
This fossil was created in solidifying sediment.
C
This fossil is an impression left by an organism.
D
This fossil was an organism that has been turned into rock.
7

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.
8

Which part of an organism is preserved in cast and mold fossils?

A
skin
B
bone
C
muscle
D
soft tissue
9

Study the timeline.

Question illustration
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.
10

An animal dies in mud, decomposes, and leaves an imprint, which is later filled by sediment to form a solid copy of the original organism.How is this fossil different from fossils of preserved remains?

A
Only hard tissue is preserved.
B
Hard and soft tissues are preserved.
C
Only soft tissue is preserved.
D
There is little change to the preserved organism.

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