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Fight between a Ichthyosaurus and a Plesiosaurus dinosaur  from an 1895 antique book \
National flag of Slovakia. Word cloud illustration.
The normal liver cells or hepatocytes contain lipid droplets, more frequent near the central vein of hepatic lobules, that can be demonstrated using osmium tetroxide as fixative. In steatosis or fatty liver disease, the amount of lipid droplets is pathologically very increased.
plant Young stem of Ligustrum lucidum T.S. under light mircoscope with white background
...an old Spanish coin, a means of payment from the Iberian Peninsula made of metal
Fossilized fish
Hookworm egg human parasite in stool examination test find microscope 40x.
Bivalvia Fossil inside a limestone rock. Gastropod from the jurassic period captured next to moss covering a forest floor.
Golden Dollar Symbol
Euglena is a genus of single-celled flagellate Eukaryotes.
High quality abstract stock photos of downtown San Francisco's financial district buildings and high rises with repeating patterns and shapes in reflective glass and steel along Market Street.
Maricola (Planarian) triclad flatworms in reef aquarium glass
Devonian cronoid fossils in limestone matrix. Largest is about 1/4\
Stentor, sometimes called trumpet animalcules, are a genus of filter-feeding, heterotrophic ciliates, representative of the heterotrichs in waste water under the microscope.
Rock formation at Bisti Southern Section, Farmington, New Mexico, USA
The human whipworm (Trichuris trichiura or Trichocephalus trichiuris) is a round worm (a type of helminth) that causes trichuriasis (a type of helminthiasis which is one of the neglected tropical diseases) when it infects a human large intestine.
Sea Urchin spine fossils.  The close-up image shows several  sea urchin spine fossils from the jurassic period on white background.
Fossil Ammonite isolate background with clipping pathFossil Ammonite isolate background with clipping path: SONY A7
Bar Pattern Design on Banknote
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
corn stem micrograph with dye
gram staining,Negative bacilli.
Bivalvia Fossil inside a limestone rock. Gastropods from the jurassic period captured during springtime.
Egg of Paragonimus westermani (lung fluke) in stool, analyze by microscope
Closeup photo of a worn, weathered, grey rock surface on the south coast of NSW
Micro world
Freshwater aquatic plankton under microscope view
A single arrowhead on a white background.
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