cliparts/6/9/d/4/clipart-petri-dish-69d4.svg image/svg+xml Open Clip Art Library Petri dish 2011-03-20T13:01:15 Petri dish http://openclipart.org/detail/128503/petri-dish-by-gsagri04 gsagri04 Agar bacteria base biology cell clip art clipart culture dish glass inoculation laboratory lid media microbiology openclipart openclipart petri plastic plate plating png science sterile svg