Hemoglobin pigment is present in the blood of certain:
A
Cnidarians
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B
Annelids
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C
Echinoderms
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D
Arthropods
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Solution
The correct option is B Annelids Haemoglobin is the iron-containing oxygen-transporting metalloprotein in the red blood cells of all vertebrates. This carries the oxygen from the lungs and gills through the blood and to the rest of the body tissues where it releases oxygen to enable aerobic respiration. Hemoglobin may also be found outside the red blood cells to functioning as an antioxidant. However, even though hemoglobin and hemoglobin-like molecules are also found in many invertebrates, hemoglobin pigment is present in the blood of certain annelids.