Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Magnifying glass on antique anatomy book: Eye
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Fungal Ear Infection, Need to Use Antifungal Ear Drops to Treat Otomycosis.
Algae under microscopic view, Diatoms, phytoplankton, fossils, silica, golden yellow
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
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
Paps smear analysis: Superficial squamous cell, metaplastic squamous cell, koilocytes cell. HPV related change
plant Zea Stem C.S. under light mircoscope with white background
grey book isolated on white, blue frame for title on the spine
Open Book, Title Page: Herodotus The Histories
Temporal Bone CT
Abstract marble texture background stock photo, suitable for design.
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Blank book cover
Open Book - Isolated
Front view of white blank book on white table in front of  black colored background. Annual Report is written on book cover.
Epithelial Cells in urine sediment.
Magnetic resonance images of the brain (MRI brain). Computed resonance imaging of the human brain.
Demodex mange from a microscope view. The parasite causing a skin disease -Demodecosis.
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.
Striatella unipunctata algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Heart Color Ultrasound Medical Examination Image
close up on single book isolated on white background
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.
Close up Plant epidermis with stomata or Leaf Epidermis (Stomata) under microscope.
Rock texture background High resolution or design art work.
Lime green generic books in a yellow square box
Free Images: "bestof:Chambers - Volume 1 - 0719.jpg Cyclopaedia Chambers page 1 0718 0719 0720"
Terms of Use   Search of the Day