AnnaMarie714
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Propose an explanation why there might be a sudden appearance of a species in the fossil record.

AThe fossil record is incomplete and the previous members of the lineage did not leave a fossil.
BThe fossil record is complete.
CThat species lived in an area that had an abundance of water and mud.
DFossils could not be found in that layer of rock

Verified Answer :

zaccattack75
DFossils could not be found in that layer of rock.

Answer: Option (A)

Explanation: According to the geological time scale, new species comes into existence suddenly and are quite fully developed. The gradual evolution of species from one kind to another is hardly seen and a very few of them were able to record in its history.

     For example, in most of the ammonoides, various step-by-step changes have been showcased but only the size and surface texture are observed to be changed.

  Thus, the correct answer is option (A).

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