The answer would be hot flashes.
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Definition:
A donor is usually a person who willingly donates something to an organization or charity of some sort.
Sentence:
An anonymous donor has donated 25 dollars to our charity.
Thank you!
Answer: The correct answer is: To prevent the evolution of pathogenic bacteria resistant to all known antibiotics.
Explanation: Natural selection is a process by which a species adapts to the environment. The main purpose of evolutionary medicine is to understand the evolutionary origin of diseases to improve the treatment and care of patients.