Will Give BRAINLIEST 100pts Watch the video linked here: Then, respond to the following questions: a. What are allergies? What is the relationship between allergies and the immune system? allergies b. How does a medicine like Benadryl (a medicine taken to suppress allergy symptoms) affect the immune system? c. How would a medicine like Benadryl affect a person if the allergen were a dangerous pathogen? d. Do you have any allergies? According to the video, what might we infer about your childhood exposure to pathogens based on your current allergies?

A. Allergies make a person react to substances in the environment that are harmless to most people but are harmless to the person reacting. Allergic reactions begin in your immune system. When a harmless substance such as dust, mold, or pollen is encountered by a person who is allergic to that substance, the immune system may overreact by producing antibodies that "attack" the allergen.

B. This medication works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.

C. It can cause a drying effect mouth and eyes, sedation, and sleepiness. However,  it can impair innate immune responses to bacteria, and that these drugs should be used with caution in patients with severe bacterial infections.

D. ---

Explanation:

The video was not linked so I can't really answer D for you. Also, I'm sure you're aware of your own allergies. Good luck!

answer; polycythemia is the correct answer;

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive