Identify All Answer Choices That Best Complete the Question

question 13

Multiple Choice

Identify all answer choices that best complete the question.  Which of the following are examples of pathogens being spread through direct contact?

• A) using a remote control after someone who has the flu has used it
• B) kissing someone who has mononucleosis
• C) a child licking a toy after another sick child has handled it
• D) a patient diagnosed with a sexually transmitted disease

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Definitions:

Hydrogen Bond

An unstable linkage between two molecules due to the electrostatic force acting between a proton within one molecule and an electronegative atom in the other.

Hydrogen Ions

Positively charged atoms of hydrogen, significant in acid-base chemistry and pH balance in biological systems.

Acidic

Having a pH less than 7, indicating the presence of a higher concentration of hydrogen ions (H+) in solution.

Hydrophobic

Characterized by a tendency to repel water; substances that do not mix with water.