What Kind of Evidence Has Recently Made It Necessary to Assign

question 28

Multiple Choice

What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdom?

• A)molecular
• B)behavioural
• C)nutritional
• D)anatomical
• E)ecological

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Definitions:

Peristalsis

The wave-like muscle contractions that move food through the digestive tract.

Cerebrospinal Fluid

The clear, protective fluid circulating around the brain and spinal cord.

Hydrocephalus

A condition characterized by an abnormal accumulation of cerebrospinal fluid within the cavities of the brain, which can cause increased pressure and swelling.

Meningitis

An inflammation of the protective membranes covering the brain and spinal cord, a condition that can be life-threatening.