A. Haemoglobin
B. Neutrophils
C. Esinophils
D. Hematocrit
Submitted by: Ahmar Baloch
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. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.
Correct Answer: Haemoglobin ✔
Last Updated: April 17, 2021