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An introduction should always clearly set out your intentions for the essay, and perhaps even include a sentence that briefly answers your question from the get-go (a thesis.) It should briefly set out a ...
A vaccine introduces a dead or inactive pathogen such as components of a virus or bacteria. The host (the person who receives the vaccination) will develop an immune response to this pathogen. The immune ...
This excerpt uses a melody unfolding via fortspinnung and featuring ornamentation. The texture consists of alternating concertino and ripieno groups. The harmony and simple and functional.
A covalent bond is formed between non-metal ions which share some of their outer shell electrons so that each atom has a stable inert gas configuration.
An amino acid is a monomer of a protein formed from an amino group, carboxyl group and variable R-group. They are held in long chains via peptide bonds.
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