Research study related physical and mental disorder
Answer: 1: The person is trying to hid from their little brother Dylan
2: The person was responsible for looking out for Dylan
Explanation: Good luck
Answer:
d. Andy, because he is the less elastic factor
Explanation:
The reason why one case of influenza does not confer lifelong immunity is that the virus tends to mutate overtime which makes it unrecognizable to the immune system.
<h3>Why is it difficult to get immunity to influenza?</h3>
Influenza is caused by a virus which tends to mutate overtime in order to stay ahead of medical technology.
As a result, this mutation makes the original virus unrecognizable to the immune system which would then be unable to fight it.
Find out more on natural immunity at brainly.com/question/21480961
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D - so colleges can learn more about the student from someone who knows the student well.
A letter of recommendation is written to give a personal insight on the candidate (for collage, career, etc.) Colleges aren't concerned with a student's popularity, and can get the students test scores and class rank on their transcripts.