In which one of the following is living fossil?

Options

A. Cycas
B. Moss
C. Saccharomyces
D. Spirogyra

Answer

A

Explanation

(a) The Cycadales is an ancient order of gymnosperms exhibiting several primitive features - now having only a few living representative of once a large group pf plants that glorified during the Mesozoic era. Therefore, Cycas is called as living fossil.