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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Left systemic arch is absent in

Options

  1. AReptiles only
  2. Bmammals only
  3. Cbirds only
  4. Dboth birds and mammals

Correct answer

C. birds only

Step-by-step solution

The systematic arch is involved in the transport of blood to all the body parts except the head. In reptiles and amphibians, both left and right arches are present. Birds have only right arch and mammals have only the left arch.

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