Question

Why Blue Blood found in octopus

Answer 1

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Octopuses have blue blood. To survive in the deep ocean, octopusesevolved a copper rather than iron-based blood called hemocyanin, which turns its blood blue. This copper base is more efficient at transporting oxygen then hemoglobin when water temperature is very low and not much oxygen is around.
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Answer 2

Answer:

Octopus blood contains the copper-rich protein hemocyanin, which is more efficient than hemoglobin for oxygen transport at very low temperatures and low oxygen concentrations.

Explanation:

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