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Universal indicator paper for pH value is shown in use on a lemon with a pH value of approx. 3, and a piece of hand soap with a pH value of approx. 11.
Young medical student woman studying about the human body on classroom at university
ascaris megalocephala cross section under the microscope showing an ovary - optical microscope x200 magnification
Close up view of a scientist's hand holding a cultivated meat sample with tweezers
Slime molds, as a group, are polyphyletic under the microscope for education.
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.
Microscope photo of steam rust, Puccinia graminis, on leaf.
plant Pumpkin ovary under light mircoscope with white background
This ia a detail of a microscope
Orthopedist holding and showing a foot model
Root plant show root vascular tissue under light microscope view for education.
A woman carefully harvests Lingzhi mushrooms on the farm, preparing them for medicinal elixirs.
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.
Host cells with spores (mold) are inside wood under the microscope for education.
Doctor orthopedist shows to the anatomical model of the foot. Arthritis, foot injuries, flat feet and pain
Skull and heart model on classroom
Microscope photo of a section through the stem of a rice plant.
plant pittospora leaf c.s. under light mircoscope with white background
Potato Plant cultivation technique with aeroponic system in Greenhouse.
Plant scientists working at plant pathology laboratory where fungal, bacterial and viral pathogens are identified and studied using various methodologies. Research of micro organism is made the cellular level.
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
Background of mold in the wood of the house.
Concept of cultured meat
Plant biology, a woman's hands close up as she pipes a substance onto the plants soil.
Pickled ginger root under the light microscope, magnification 100 times, microscope objective 10
amazing inhabitants of the microworld under a microscope
Image of head-to-toe scan of a fit woman and muscular man body. Comparison of male and female body. MRI scanning of the human body skeletal and muscular systems with front view. / You can see the animation movie of this image from my iStock video portfolio. Video number: 1453183764
Longitudinal section of a porcine embryo under the microscope.
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Purple
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