Along with peanuts<span> and shellfish, tree nuts are one of the </span>food allergens<span> most often linked to anaphylaxis — a serious, rapid-onset </span>allergic reaction<span> that may be ... to determine the presence of</span>allergen-specific<span> immunoglobulin E, an antibody that binds to </span>allergens<span> and triggers the release of chemicals that </span>cause<span> symptoms</span><span>.
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Answer:
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
I'm not 100% sure, but I'd say the availability of vaccines and medicine.
B.)Ecosystem
A community resides within an ecosystem, a population within a community, and an individual within a population
