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Mice being used in scientific research.
Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification
Freshwater aquatic zooplankton and algae under microscope view
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Green algae cells background
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.
biological tests and new pharmacological discoveries in biotechnology
Haliotis kamtschatkana, northern abalone or pinto abalone, is a species of large sea snail, a marine gastropod mollusc in the family Haliotidae, the abalones. It has been listed as \
Striped mosquitoes life circle with white background. Life cycle of mosquitos isolate on white background.
Liver Fluke Section under light microscope with white background
Animal experiment with black mouse in scientific laboratory
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Ambystoma mexicanum - Mexican walking fish - freshwater animal
Trematode parasite under a microscope
Microscopic Rotifer or Rotifera under a microscope, freshwater bentic organism filtering water.
Urothelial carcinoma, high grade.  High-grade tumors have an aggressive appearance under a microscope and are assumed invasive in the kidney or ureter.
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.
Euglena is a genus of single cell flagellate eukaryotes under microscopic view for study.
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
An oriental glass frog sat on a leaf protecting its egg clutch from predators. This frog is endemic to the island of Tobago.
amazing inhabitants of the microworld under a microscope
The pituitary gland cross section in microscopy
Corydoras fry
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Artemia Salina - Brine Shrimp are food of Seahorses and many other Saltwater Animals
Pheochromocytoma, Site: Adrenal gland
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Antibiotic susceptibility testing,  antibiotic resistance.
Microscopic view of phytoplankton
Free Images: "bestof:Corticogenesis in a reeler mutant mouse.png Corticogenesis in a brain of a reeler mutant mouse lacking the Reelin protein Six cortical layers are disorganized"
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