Antiquity of civilization

Civilization (from the Latin civis=citizen and civitas=city) is a term applied to any society which has developed a writing system, government, production of surplus food, division of labor, and urbanization. The term is difficult to define…

Life histories of Algae

The Euglenophyceae are believed to be an ancient lineage of algae that includes some zooflagellate protozoa, which is supported by ultrastructural and molecular data, though the group is taxonomically contentious.…