The following chart represents the evolutiona | vedclass

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(A) Based on the standard evolutionary chart of vertebrates provided in the $NCERT$ textbook: $1$. The organism labeled $P$ represents the Tuatara,whi

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Tuatara,Therapsids

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(A) Based on the standard evolutionary chart of vertebrates provided in the $NCERT$ textbook: $1$. The organism labeled $P$ represents the Tuatara,which is a living fossil belonging to the lineage of reptiles. $2$. The organism labeled $Q$ represents the Therapsids,which are the ancestors of mammals that evolved from synapsids during the Triassic period. Therefore,$P$ is Tuatara and $Q$ is Therapsids.

The following chart represents the evolutionary history of vertebrates through geological periods. What are the organisms $P$ and $Q$?

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