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Cover of an old red book on a black background. The book is unfolded. Side view.
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
Old book journal cover, with worn marbled paper pattern, scuffed leather spine and corner
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
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.
A closeup of old brown book covers isolated on white background
In vitro bacterial culture
grey book isolated on white, blue frame for title on the spine
Pine Root C.S. under light mircoscope with white background
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
Open Book, Title Page: Herodotus The Histories
Close up Plant epidermis with stomata or Leaf Epidermis (Stomata) under microscope.
Orange Square wooden box filled with orange book replicas
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Blank book cover
Collage with old papers
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.
Open Book, Title Page: Fables of La Fontaine
The Microscopic World. Tap water.
Photomicrograph of Volvox globator, a green algae in various stages of development. Dark green spots are daughter colonies forming inside of parent colony. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Algae under microscopic view, Diatoms, phytoplankton, fossils, silica, golden yellow
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.
abstract background with bokeh lights
Blue Square wooden box filled with blue book replicas
Blank old open book cover mockup close up. Vintage texture surface background. Blank retro backgrop with empty place for text or design.
Open Book, Title Page: TO THE LIGHTHOUSE by Virginia Woolf
Closed old book for postage stamps isolated on white background
Concentric patterns and textures of Natural Agate slice for background.
Free Images: "bestof:Chambers - Volume 1 - 0798.jpg Cyclopaedia Chambers page 1 0797 0798 0799"
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