When everyday stresses intrude into our protected space or an unexpected relationship problem disturbs our calm, we may begin to feel insecure and self-doubting. We may also begin to doubt our partner’s love, loyalty, and trustworthiness. Without realizing it, we may react to these doubts by pulling away from our loved one in subtle ways.
A late-acting lethal dominant allele
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The secretion of hydrochloric acid by the stomach plays an important role in protecting the body against pathogens ingested with food or water. A gastric fluid pH of 1 to 2 is deleterious to many microbial pathogens; however, the neutralization of gastric acid by antacids or the inhibition of acid secretion by various drugs may increase the risk of food- or waterborne illnesses. Peptic ulcer disease is often treated by decreasing or eliminating gastric acid secretion, and such treatment blocks the protective antibacterial action of gastric fluid.
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The answer is D. Environmental
