AnswersCV Q4 MJ Science 3 Adv 2002110 Compacted Review of Grade.7.Life for SSA PrepThe Fossil Record
The Fossil Record Answers
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Alex listed the typical steps of fossil formation.1) An organism dies.2) The remains fall to the bottom of the ocean.3) The soft portions decay, and the hard portions remain.4) The sediment becomes rock.
A
After step 3, layers of sediment cover the dead organism.B
After step 1, minerals dissolve the dead organism.C
After step 4, layers of sediment cover the dead organism.D
After step 2, minerals dissolve the dead organism.2
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The diagram shows fossils buried in layers of sediment.
A
The fossil in layer Z is the youngest.B
The fossils in layers Y and Z are younger than the fossil in layer V.C
The fossil in layer Y is older than the fossil in layer W.D
The fossil in layer X is older than the fossil in layer Z.3
According to the fossil record, which of these evolved after amphibians? Select two options.mammalsspongesfishbacteriareptiles
A
mammalsB
spongesC
fishD
bacteriaE
reptiles4
mammalsbacteriacells with a nucleusmulticellular organisms
A
mammalsB
bacteriaC
cells with a nucleusD
multicellular organisms5
How much time is needed to form most fossils?
A
a few monthsB
a few yearsC
hundreds of yearsD
millions of yearsDid you find these answers helpful?
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