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Rapunzel324
1 month ago

The Hb > Haemoglobin > red blood dye dyes the blood red.

Haemoglobin accounts for 90 percent of erythrocytes > red blood cells and consists of iron.

Rapunzel324
1 month ago
Reply to  Rapunzel324

Thank you for the star!

Kassandra0811
1 month ago

Blood contains hemoglobin, strong irony.This makes the red color.

BurkeUndCo
1 month ago

The red blood cells contain iron for oxygen transport ===> therefore they have the same color as grate.

pupsnase2
1 month ago

Rust. There is iron or iron compounds