[A] : Chordates have an oxygen carrying pigment called haemoglobin . It is always present in red
Channel: Doubtnut
Date: 2020-05-03

[A] : Chordates have an oxygen carrying pigment called haemoglobin . It is always present in red blood corpuscles .  [R] : Non-chordates have either no haemoglobin or if it is present , it is present in plasma . Non-chordates require very little oxygen as compared to chordates for their body functions.