Question

what is the blood colour of octopus ​

Answer 1

Answer:

blue

Explanation:

Several species of octopus have blue, rather than red, fluid running through their veins. The blue comes from a copper-rich protein called hemocyanin, which carries oxygen from the lungs to the bloodstream and then to the cells of the octopus's body.

Answer 2

Answer:

Blue

Becaise there is copper in the blood so when copper reacts with oxygen it turns into a blue colour