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!

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !