Protein - Large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding.⏎
Nanometer - A unit of length equal to one one-billionth (1 x 10-9) of a meter.⏎
Pathogen - A biological agent that causes disease.⏎
Parasitism - A close relationship between two organisms in which one organism, the parasite, benefits at the expense of the host organism.⏎