https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12340411Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsMiguel Manresa, Jr., a graduate student from Laguna, Philippine Islands. He is doing research on the effect of vitamins on the reproduction of intestinal protozoa in the rat. Iowa State College. Ames, Iowa. Sourced from the Library of Congress.MoreMiguel Manresa, Jr., a graduate student from Laguna, Philippine Islands. He is doing research on the effect of vitamins on the reproduction of intestinal protozoa in the rat. Iowa State College. Ames, Iowa. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 895 px | 300 dpiLarge JPEG 3500 x 2610 px | 300 dpiBest Quality JPEG 3882 x 2895 px | 300 dpiTIFF 3882 x 2895 px | 300 dpi | 10.74 MBFree Download