Which Type of Medium Is Able to Distinguish Different Species

question 60

Multiple Choice

Which type of medium is able to distinguish different species or types of microorganisms based on an observable change in the colonies or in the medium?

• A)differential
• B)selective
• C)enumeration
• D)enriched
• E)reducing

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Definitions:

Biodegradable

Materials that can be broken down into natural elements by microorganisms over time, without harming the environment.

Decomposers

Organisms such as fungi and bacteria that break down dead organic material, returning nutrients to the ecosystem.

Biomass Pyramid

A graphical representation showing the relative amount of living organic matter available at each trophic level in an ecosystem.

Anaerobic Respiration

A process by which organisms produce energy without the use of oxygen.