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
Freshwater aquatic zooplankton and algae under microscope view
In vitro bacterial culture
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.
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
Cover of an old red book on a black background. The book is unfolded. Side view.
Heart Color Ultrasound Medical Examination Image
Epithelial Cells in urine sediment.
Pine Root C.S. under light mircoscope with white background
grey book isolated on white, blue frame for title on the spine
Abstract marble texture background stock photo, suitable for design.
Volvox sp. algae under microscopic view, polyphyletic genus of chlorophyte green algae in the family Volvocaceae
Collage with old papers
Raspberry rust is a malignant disease caused by the phytoparasitic fungus Phragmidium rubi-idaei. This pathogen forms small ulcers on the leaves through which a huge mass of orange spores breaks through. Under a microscope, this pathogen does not look so sinister.
Open Book, Title Page: TO THE LIGHTHOUSE by Virginia Woolf
Moderate epithelial cells in urine specimen with yeast cells and bacteria real sample
Grunge paper background with space for text or image
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Micro world
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Photomicrograph of stomata of leaf. Typical monocot distribution of stomata. Epidermis peeled from iris leaf. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Paps smear analysis: Superficial squamous cell, metaplastic squamous cell, koilocytes cell. HPV related change
Ultrasound image of a breast
close up of a book paper sheets abstract texture 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.
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.
The Microscopic World. Tap water.
Word cell on a dictionary.
Rock texture background High resolution or design art work.
Free Images: "bestof:Chambers - Volume 1 - 0300.jpg Cyclopaedia Chambers page 1 0299 0300 0301"
Terms of Use   Search of the Day