Question

Q10. Why does blood appear red in colour?​

Answer 1

Answer:

Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. ... It's bright red when the arteries carry it in its oxygen-rich state throughout the body.

Explanation:

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Answer 2

Answer:

Human blood is red because haemoglobin, which is carried in the blood & functions to transport oxygen, is iron- rich & red in color.