The reddish color of the skin of the lips is primarily due to the presence of a pigment called haemoglobin.
The lips of a human are the visible body part of the mouth.
It is ither of the two fleshy protrusions around the opening of the mouth. The lips of humans usually have a red coloration.
This red coloration is due to a pigment in the red blood cells called haemoglobin.
Learn more about haemoglobin at: https://brainly.com/question/1596657
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