Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
\
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
Cover of an old red book on a black background. The book is unfolded. Side view.
Old book journal cover, with worn marbled paper pattern, scuffed leather spine and corner
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.
In vitro bacterial culture
Moleskine texture color cover on white background
Algae under microscopic view, Diatoms, phytoplankton, fossils, silica, golden yellow
Collage with old papers
grey book isolated on white, blue frame for title on the spine
plant Zea Stem C.S. under light mircoscope with white background
Temporal Bone CT
Abstract marble texture background stock photo, suitable for design.
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
Pattern Design on Banknote
Word cell on a dictionary.
Grunge paper background with space for text or image
Paps smear analysis: Superficial squamous cell, metaplastic squamous cell, koilocytes cell. HPV related change
Fungal Ear Infection, Need to Use Antifungal Ear Drops to Treat Otomycosis.
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
The Microscopic World. Tap water.
Heart Color Ultrasound Medical Examination Image
abstract background with bokeh lights
Abstract Crystal background marble shot, nature pattern.
Close up Plant epidermis with stomata or Leaf Epidermis (Stomata) under microscope.
Blue Square wooden box filled with blue book replicas
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
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.
Free Images: "bestof:Chambers - Volume 1 - 0800.jpg Cyclopaedia Chambers page 1 0799 0800 0801"
Terms of Use   Search of the Day