All biological pigments selectively absorb certain wavelengths of light while reflecting others. The principal pigments responsible are: 1  Chlorophyll is the primary pigment in plants; it is a chlorin that absorbs yellow and blue wavelengths of light while reflecting green.2  It is the presence and relative abundance of chlorophyll that gives plants their green color.he primary function of pigments in plants is photosynthesis, which uses the green pigment chlorophyll along with several red and yellow pigments that help to capture as much light energy as possible. Other functions of pigments in plants include attracting insects to flowers to encourage pollination.
serif - a short line at the end of the main strokes of a character. seriph. printing process, printing - reproduction by applying ink to paper as for publication. line - a mark that is long relative to its width; He drew a line on the chart.
In typography, a sans-serif, sans serif, gothic, san serif or simply sans typeface is one that does not have the small projecting features called  serifs  at the end of strokes. The term comes from the French word sans, meaning without and serif from the Dutch word schreef meaning line. Sans-serif fonts tend to have less line width variation than serif fonts. In print, sans-serif fonts are often used for headlines rather than for body text. Sans-serif fonts have become the most prevalent for display of text on computer screens.