Question

what do you need an oxygen carries like the human in whom oxygen is carried by haemoglobin?

Answer 1

Hi
Oxygen is supplied to our body by blood and. haemoglobin is a pigment present in our Red blood cells.
Hope this helped you.....☺

Answer 2

There is no need of of an oxygen carrier in plants because plants synthesise oxygen during photosynthesis and they consume oxygen during respiration. All parts of plants perform respiration and gets oxygen directly. So, they do not need an additional carrier to transport
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