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Micrograph of amoeba.  Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live animal, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Potassium permanganate (KMnO4) with chemical structure , a common chemical compound that combines manganese oxide ore with potassium hydroxide.
Midsection of young male biochemist using pipette over multi well plate at laboratory
Cross section leaf of plant under the light microscope view for botany education.
Close-up view of  empty plastic container for taking stool or feces samples of patient in pathology laboratory
Photos taken in the biotechnology laboratory focused on addressing global challenges of biosustainability, including sustainable production of food and feed, but also biochemicals and materials.
Backgrounds of Bacteria and Mold under the microscope in Lab.
researchers lab work
Thyroid cancer: Microscopic image of Metastatic papillary carcinoma of thyroid. Reactive change. Lymph node carcinoma.
plant Stem-Collenchyma C.S. under light mircoscope with white background
Expert analyzes stuffed meat contaminated by bacterium of listeria in laboratory, sprout caused in Spain
Mesenchymal dysplasia. Site: Placenta
Toxoplasma gondii oocyst under the microscope, isolated
Scientist's hand Collecting data for research.
Gram positive cocci finding with microscope in lab.
A kindergarten progress report card from the 1987 - 1988 school year. Work and study habits.
Three syringes are pictured on a sterile metal tray, which is held in the hands of someone wearing a lab coat and gloves. In the background are lab and research materials.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Molecule with water background, 3d rendering. Digital drawing.
Lactose fermenting (yellow) enterobacterium close up.
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
PAPS Smear study of a young women under microscopy showing Atrophic changes in uterus which is unusual at young age.
Liver Fluke Section under light microscope with white background
Molecular model of insulin hormone, 3D illustration. It is produced by pancreas and takes part in glucose and lipid metabolism
anaplastic thyroid carcinoma with heterologous differentiation (leiomyosarcoma)
Scalp and hair follicles of human under the microscope in Lab.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Dollar-cost averaging (DCA) on a paper and charts.
The pale lactose nonfermenting bacterie (blue arrow) are Salminella typhi.  Salmonella in general does not ferment lactose (colorless colonies),  Salmonella typhi,unlike other salmonallae, produce little hydrogen sulfide (H2S) gas.  The resulting bacterial colonies will appear colorless with colorless or very discrete black centers.
Free Images: "bestof:Myofilament.svg Myofilament cite book Walter F PhD Boron Medical Physiology A Cellular And Molecular Approaoch Elsevier/Saunders 2003 1300 1-4160-2328-3 Page 29"
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