The Bacterium,E

question 17

Multiple Choice

The bacterium,E.coli,lives in the large intestines of mammals and feeds on undigested food material.E.coli helps to synthesize vitamin K that is essential for mammalian blood clotting.The relationship between E.coli and mammals is a

• A) commensalism.
• B) mutualism.
• C) competition.
• D) predation.
• E) parasitism.

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Definitions:

Spontaneous Remission

The unexpected improvement or cure of a disease or condition which occurs without any conventional medical intervention.

Placebo Effect

A phenomenon where an individual experiences a perceived improvement in condition due to personal expectations, rather than the effect of an active medical treatment.

Subjective Well-Being

Someone's self-evaluation concerning their overall happiness and life fulfillment.

Epinephrine

A hormone also known as adrenaline, secreted in response to stress and increases heart rate, muscle strength, blood pressure, and sugar metabolism.