In poetry, a stanza is a division of four or more lines having a fixed length, meter or rhyming scheme. Stanzas in poetry are similar to paragraphs in prose. Both stanzas and paragraphs include connected thoughts and are set off by a space. The number of lines varies in different kinds of stanzas but it is uncommon for a stanza to have more than twelve lines. The pattern of a stanza is determined by the number of feet in each line and by its metrical or rhyming scheme.
BIOLOGICAL TOXINS. Toxins are defined as any toxic substance of natural origin produced by an animal, plant, or microbe. They are different from chemical agents such as VX, cyanide, or mustard in that they are not man-made.
Products of animal origin such as tissues, milk, and eggs contain different antimicrobial agents that are. mainly in the form of peptides (polypeptides). In most cases natural antimicrobials are extracted and purified to be tested. or applied to food products. Extraction and purification may alter the chemical structure of natural antimicrobials and. affect their functionality.