An Environmental Testing Laboratory Is Unable to Identify a Single-Celled

question 1

Multiple Choice

An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample.Inspection of the microorganism with a compound microscope reveals that it uses pseudopodia for movement and is not enclosed within a mineral shell.Based on this information,this organism can be classified to which supergroup?

• A)Opisthokonta
• B)Alveolata
• C)Amoebozoa
• D)Rhizaria
• E)Excavata

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Definitions:

Bacterium

A large domain of prokaryotic microorganisms, typically a few micrometers in length, that can exist as single cells or in clusters, and have various roles in the environment, medicine, and industry.

Prion

Infectious agents composed of protein in a misfolded form, associated with several neurodegenerative diseases.

Virus

A microscopic infectious agent that can only replicate inside the living cells of an organism, leading to a variety of diseases in humans, animals, and plants.

Cardiac Arrest

A medical emergency where the heart suddenly stops beating, leading to a cessation of blood flow to the brain and other vital organs.