Carotenoids are organic pigments that are found in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms, including some bacteria and some fungi. Carotenoids can be produced from fats and other basic organic metabolic building blocks by all these organisms.
   Senegal is a republic with a presidency; the president is elected  every five years as of 2001, previously being seven years, by adult  â¦ voters.
Senegalâs population is over 11 million people and is made up of many diverse ethnic groups. The largest ethnic group in Senegal are the Wolof, comprising about 43% of the population, roughly 24% are Pular, 15% Serer, 4% Jola, 3% Mandika, 1% Soninke, and another 1% European or Lebanese.