Scientists Have Uncovered Evidence Showing That Cyanobacteria Have Been Present

Multiple Choice

Scientists have uncovered evidence showing that cyanobacteria have been present on Earth over the past 3.5 billion years, yet a single cyanobacterium has a life-span of only a day or two.Which biological principle does this set of observations best illustrate?

A) All organisms present on Earth today share a common ancestor.
B) Cells are the fundamental units of life, and all organisms are composed of cells.
C) Environmental factors can influence the growth and development of an organism.
D) Cells use matter and energy from the environment to maintain the living state, to grow, and to reproduce.
E) Life is continuous, with successive generations connected in an unbroken chain of transfer of biological information.