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Cover of an old red book on a black background. The book is unfolded. Side view.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Old book journal cover, with worn marbled paper pattern, scuffed leather spine and corner
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
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.
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
In vitro bacterial culture
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
plant rape flower cross section under light mircoscope with white background
Close up Plant epidermis with stomata or Leaf Epidermis (Stomata) under microscope.
Collage with old papers
Microscopic Image of pollen from the hazel bush; microscopic picture in 1000times magnification
Open Book, Title Page: Herodotus The Histories
Transmission electron microscope micrographs  showing the aspect of muscle fiber sarcomere components in longitudinal (below) and transverse (above) sections at the Z-line, I and A bands and H zone
Grunge paper background with space for text or image
Triangular pollen grains of
Freshwater aquatic zooplankton and algae under microscope view
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
Heart Color Ultrasound Medical Examination Image
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Epithelial Cells in urine sediment.
Open Book, Title Page: Fables of La Fontaine
Breast nodule histology. Gynacomastia, microphotograph of male breast lump show benign ductal epithelial cells and fibrous tissue.
plant Stem Sclerenchvma C.S. under light mircoscope with white background
Volvox sp. algae under microscopic view, polyphyletic genus of chlorophyte green algae in the family Volvocaceae
Rock texture background High resolution or design art work.
Moderate epithelial cells in urine specimen with yeast cells and bacteria real sample
Intricate bubble texture macro in bright colors for abstract background. Liquid bubbles lit from below with colors injected into the liquid as a design or art abstract.
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