What Causes a Stomach Ulcer

question 60

Multiple Choice

What causes a stomach ulcer?

• A)Lack of a key nutrient
• B)Consuming too many calories
• C)Chronic consumption of spicy food
• D)A bacterial infection

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Definitions:

Roundworms

A phylum of worms characterized by their elongated, cylindrical bodies, many of which are parasitic.

Human Beings

A species of intelligent primates, Homo sapiens, known for their ability to use complex language and create cultures.

Fruit Flies

Small flies belonging to the species Drosophila melanogaster, extensively used in genetic research because of their short life cycle and genetic variability.

RNAi

A biological process in which RNA molecules inhibit gene expression or translation, by neutralizing targeted mRNA molecules.