Which colors do melanin produce?

Which color does carotene produce?

Which pigment does hemoglobin produce?

Which pigment is found primarily on the palms of the hands and soles of the feet?

What color does the skin turn when the blood is poorly oxygenated?

Which of the following can prolonged and/or excessive exposure to the sun cause?

All humans have the same relative amount of melanocytes, individual and racial differences in skin coloring reflect the kind and amount of melanin made.