Stock photography, photos: Marine sponge Stock photos of marine sponge on a microscopic slide Photograph: © Johanna Goodyear Click for a larger image and more information Keywords associated with this stock photo: anatomy, bacteria, biology, cells, dissection, education, focus, inspect, learn, lens, life, microscope, microscopic, observation, sample, science, scientific, slides, specimen, study, technology, marine, sponge, experiment, germ, microorgansm, organism, parasite, virus, knowledge, precise, diagnostic, analysis, examination, genetics, botany, natural, biological