The correct answer is catalyst. Hope that helps.
False, common examples of pathogens are pollen and animal hair.
An antigen called an allergen causes the immune system to react in an excessively ferocious way to a perceived threat that would otherwise be harmless to the body. Allergies are the term for such reactions.
Technically speaking, an allergen is an antigen that, when exposed to atopic persons, can trigger an immunoglobulin E (IgE) response, resulting in a type-I hypersensitivity reaction.
The majority of Immunoglobulin E responses in humans are only activated in response to parasite infections. Some people, however, may react to a variety of widespread environmental antigens. Atopy is the name given to this inherited tendency. Non-parasitic antigens in atopic people cause erroneous IgE production, which results in type I hypersensitivity.
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Answer:
Median nerve is likely involved in her problem.
Martha likely has carpal tunnel syndrome. This syndrome is a result of the median nerve being compressed by the flexor retinaculum due to overuse. The compression of the nerve causes weakness in the muscles supplied by the median nerve and sensory deficits in the parts of the skin that it innervates.
By the Chromosomes in the dna