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Four types of hypersensitivity reactions are usually classified as localized?
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Are tsunamis a localized weather phenomenon?
No, they are not weather-related and usually not localized. Tsunamis are usually caused by a disturbance of the seabed such as an earthquake and can travel thousands of miles.
Do carbohydrates essentially act as ketones or aldehydes n their reactions?
No, their 'OH' groups are usually involved in chemical reactions.
Are exergoinic and endergoic reactions frequently coupled?
Endergonic reactions are always coupling reactions. They will only occur where there is input of energy and they usually take place in a simultaneous manner.
What are the products of combustion reactions?
Usually Water and Carbon Dioxide.
Inflammatory reactions usually occur in what tissue?
connective tissue
What causes immediate hypersensitivity reactions?
Inhaled or ingested allergens usually cause immediate hypersensitivity reactions.
What causes delayed hypersensitivity reactions?
Allergens on the skin usually cause delayed hypersensitivity reaction.
What individual hypersensitivity to a substance usually antibody-antigen reaction is known as?
It is an allergy
What are stars usually classified by?
They are usually classified by their temperature.
In the body decomposition reactions are usually anabolic reactions?
No, these reactions are catabolic.
What is bird keeper's lung?
The technical name for it is Hypersensitivity pneumonitis which is an "inflammation of the lungs due to breathing in a foreign substance, usually certain types of dust, fungus, or molds." https://health.google.com/health/ref/Hypersensitivity+pneumonitis
In the body decomposition reactions are usually?
These reactions are called catabolic.
Are exothermic reactions decomposition reactions or are they synthesis reactions?
Synthesis reactions are generally characterized by being exothermic. Decomposition reactions are usually endothermic.
Display devices are usually classified as what type of devices?
Display devices are usually classified as output devices.
When does a hypersensitivity reaction occur?
Hypersensitivity is when a person's immune system over-reacts to an antigen. This usually occurs in the context of allergies, when a person develops a runny nose, itchy watery eye, sneezing and coughing due to pollen or mold in the air. A more serious form of hypersensitivity reaction is anaphylactic shock, when the throat swells shut and a person cannot breathe; this is usually in response to a severe allergic reaction such as to peanut butter, bee stings or other antigens.
How are engineering materials classified?
the material usually classified based on their properties.
What are considered Favorable chemical reactions?
Chemical reactions that occur spontaneously usually give off energy, usually heat.
