Question

Why octopus blood is blue?​

Answer 1

Answer:

The blue blood 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.

Explanation:

hope this will help u

Answer 2

Answer:

Explanation:

Well, the blue blood is because the protein, haemocyanin, which carries oxygen around the octopus's body, contains copper rather than iron like we have in our own haemoglobin.