Question

why the octopus have Blue Blood?​

Answer 1

Answer:

blood appears to be red because of haemoglobin humans blood is also blue but they appear red..... octopus don't have haemoglobin so their blood appears blue

Explanation:

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Answer 2

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❤Octopus blood is blue in colour because its blood contains the copper-rich protein hemocyanin for transporting oxygen.