(Encyclopedia) ChrysophytaChrysophytakrəsŏfˈətə [key], phylum (division) of unicellular marine or freshwater organisms of the kingdom Protista consisting of the diatoms (class Bacillariophyceae), the…
(Encyclopedia) bean beetle, common name for a destructive beetle, Epilachna varivestis, of the ladybird beetle family. Although nearly all other members of this family are beneficial carnivores, the…
(Encyclopedia) state flowers. Each state of the United States has designated, usually by legislative action, one flower as its floral emblem; the rose has been designated by Congress as the national…
(Encyclopedia) garnet, name applied to a group of isomorphic minerals crystallizing in the cubic system. They are used chiefly as gems and as abrasives (as in garnet paper). The garnets are double…
Source: The U.S. Food and Drug Administration (FDA)
Why do we need vaccines?
Vaccines protect us against deadly diseases like measles, mumps and whooping cough.
How do vaccines work?
When you…
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