1
Q
the remains or physical evidence of an organism preserved by geological processes
A
fossils
2
Q
a fossilized mark that is formed in soft sediment by the movement of an animal
A
trace fossil
3
Q
a mark or cavity made in a sedimentary surface by a shell or other body
A
mold
4
Q
a type of fossil that forms when sediments fill in cavity left by a decomposed organism
A
cast
5
Q
a fossil that is found in the rock layers of only one geologic age and that is used to establish the age of the rock layers
A
index fossil
science6thgrade
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