Pigments are substances that absorb certain wavelengths of light and reflect others, giving them their characteristic color.
Here are some examples:
* Melanin: The pigment responsible for skin, hair, and eye color.
* Hemoglobin: The pigment in red blood cells that carries oxygen and gives blood its red color.
* Chlorophyll: The green pigment in plants that absorbs light energy for photosynthesis.
There are many other pigments found in cells and tissues, contributing to the diversity of colors we see in the world.
