A Biologist Discussing the Discovery of Horseshoe Crab Fossils That

Multiple Choice

A biologist discussing the discovery of horseshoe crab fossils that date to 445 mya mentions that these fossils were the ancestors of horseshoe crabs living today.Which biological principle does this illustrate?

A) The fundamental unit of life is the cell.
B) All organisms on Earth share a common ancestor.
C) Life is continuous.
D) All living organisms are composed of cells.
E) Evolution explains the diversity of living organisms on Earth today.