Which one of the following is a living fossil | vedclass

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(C) living fossil is an extant taxon that closely resembles related species known only from the fossil record. $Limulus$,commonly known as the King Cr

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Limulus

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(C) living fossil is an extant taxon that closely resembles related species known only from the fossil record. $Limulus$,commonly known as the King Crab,belongs to the phylum $Arthropoda$ and class $Merostomata$. It has remained virtually unchanged for millions of years,making it a classic example of a living fossil. $Spongilla$ is a freshwater sponge,$Obelia$ is a cnidarian,and $Aplysia$ is a sea hare (mollusk),none of which are classified as living fossils.

Which one of the following is a living fossil?

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