Using Present Terminology, How Many Bacterial Phyla Have Been Discovered

question 16

Multiple Choice

Using present terminology, how many bacterial phyla have been discovered thus far?

• A) 8, but the actual number may be as high as 25
• B) 4, but the actual number may be as high as 10
• C) 40, but the actual number may be higher
• D) at least 80

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Definitions:

Ionization Potential

The minimum amount of energy required to remove the most loosely bound electron from an isolated neutral atom or molecule.

Voltage

An electrical measurement expressing the potential difference between two points, the driving force of electric current.

Electron

A subatomic particle with a negative electric charge, fundamental to electrical phenomena and components of atoms.

Electroplating

A process that uses electric current to deposit a thin layer of metal onto a conductive surface, typically for protective, decorative, or functional purposes.