In which of the following is the right system | vedclass

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(C) In vertebrates, the systemic arch is a major blood vessel that carries oxygenated blood from the heart to the body. In $Mammals$, only the left sy

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Mammals

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(C) In vertebrates, the systemic arch is a major blood vessel that carries oxygenated blood from the heart to the body. In $Mammals$, only the left systemic arch persists, while the right systemic arch is absent. In $Birds$, only the right systemic arch persists, while the left systemic arch is absent. In $Reptiles$, both left and right systemic arches are present. Therefore, the right systemic arch is absent in $Mammals$.

In which of the following is the right systemic arch absent?

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