Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
3D cartoon and Gaussian surface models, PDB 6kxs, white background
Acid Reflux GERD Disease Illustration
abs Lactobacillus Bulgaricus Bacteria - 3d rendered microbiology image. Medical research, health-care concept.
plant Zea Stem C.S. under light mircoscope with white background
Lily leaf c.s. under microscope
Vaginal Virus Infection or Herpes simplex as sexually transmitted disease or STD as viral vaginitis symptoms of female genital infected vagina as vaginosis outbreak with 3D illustration elements.
Penicillium Chrysogenum (Penicillium Notatum)
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
Trematode parasite under a microscope
Salmonella are a bacteria responsible for food poisoning, 3d render of microorganism cousing gastrointestinal disease
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Serpins are a superfamily of proteins with protease inhibition activity found in all kingdoms of life. 3D cartoon and Gaussian surface models, chain id color scheme, PDB 2znh, white background.
Liver Fluke Section under light microscope with white background
Toxoplasma gondii oocyst under the microscope, isolated
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
Escherichia Coli (E. Coli.)
Nanomedicine inside of closed single layer carbon nanotube with conjugated antibodies 3d rendering
Abs Bubonic plague bacteria - 3d rendered image structure view on black background. \nPlague Infection concept.  Hologram bacteria view.
Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
amazing inhabitants of the microworld under a microscope
plant rape flower cross section under light mircoscope with white background
Brain-derived neurotrophic factor and Neurotrophin-4, NT-3 are neurotrophic factors in the NGF (Nerve Growth Factor) family of neurotrophins. 3D cartoon and Gaussian surface models with differently colored chains, white background.
Abstract Globe World Maps On White
Lily anther c.s. under microscope
Bacteria medical illustration - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Free Images: "bestof:Vexillum pro.jpg en Legionary vexillum - model for procession pt vexillum Legiones - modelo de procissão la vexillum legionis - exemplar own Francyelle"
Terms of Use   Search of the Day