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rebecca's ch8
study guide
Question | Answer |
---|---|
the remains or traces of past life found in sedimenty rock | fossil |
the hoolow space that is left behind after an org. dissolves | mold |
a type of fossil formed when minerals fill the space left after org. dissolves | cast |
a fossil that helps scientist find the ago of a rock layer that may be out of order | index fossil |
fossil are found in --------- rock | sedimanty |
footpairt in mad | trace fossil |
oldest layer | bottem |
lived in many place at one time | index fossil |
whole animals | trapping in amber |
longest contaed | panga |
the stidy of fossils | palenonty |
no change millon year living things | true |
part of shark into fossil | teeth |
elephants and mammoths in common | an ancester no tusk |
fish found in dasert | water their |