Scientists Have Uncovered Evidence Showing That Cyanobacteria Have Been Present

question 223

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.

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Definitions:

Produces Flowers

This refers to the ability of certain plants to generate flowers, which are the reproductive structures involving the production of seeds and fruits.

One Living Species

Refers to the concept of a species being the sole surviving member of its genus or family, often highlighting the vulnerability of such species to extinction.

Trunk-like Stem

Describes the main stem of a plant that is notably thick and strong, resembling the trunk of a tree.

Compound Leaves

Leaves that are divided into multiple leaflets, all attached to a single stem, as opposed to single, undivided leaves.