It Is Now Past the Normal Dinner Time, but You

question 95

Multiple Choice

It is now past the normal dinner time, but you do not even want to think about food.Only diarrhea, abdominal cramps, and vomiting are on your mind.This all started a few hours ago after having a ham sandwich for lunch purchased from a street vendor.With your microbiology knowledge, you surmise that it is a Staphylococcus aureus-related disorder.Why do you think this?

• A)Staphylococcus aureus is the most common cause of gastrointestinal disease.
• B) The toxin produced by Staphylococcus aureus was already in the ham, so the symptoms can occur quickly.
• C) Ham is notorious for being contaminated with Staphylococcus aureus bacteria.
• D) Only Staphylococcus aureus infection causes vomiting, along with cramps and diarrhea.

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Definitions:

Gallflies

A group of insects known for their ability to induce gall formation on plants, where they then live and feed.

Intermediate Gall Sizes

Refers to the medium range of sizes for galls, which are abnormal growths on plants caused by various organisms.

Stabilizing Selection

An evolutionary process that favors the intermediate variants of a trait, leading to a decrease in variation around a certain phenotype, often maintaining the status quo in a population.

Natural Selection

The process by which organisms better adapted to their environment tend to survive and produce more offspring, driving evolution.