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Leiden leaf c.s. under microscope
plant Pine Cone-Female L.S. under light mircoscope with white background
old Tusayan ruins in the Great Canyon national park
Low angle view of twisting branches of a Japanese Maple.
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
The 12 constellations of the zodiac drawn on an old paper.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Image from under the tree canopy
Transmition Electron microscopy of an epithelial cell where mitochondria of several sizes can be seen with the characteristic double membrane and internal cristaes. Mitochondria are believed to be of bacteria origin. It has its own genome and RNA and protein which are similar to those of bacteria.
Bottom view of trees and sky
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Epithelioid mesothelioma is a cancer subtype caused by asbestos. It is the most common mesothelioma cell type, accounting for 50% to 70% of cases.
Transmission electron micrograph (TEM) showing a striated skeletal muscle cell in cross section. Among myofibrils (sectioned at the band A level), mitochondria and sarcoplasmic reticulum can be seen.
Plant on dry land at Bisti Southern Section, Farmington, New Mexico, USA
Chaetoceros is the largest genus of marine planktonic diatoms, phytoplankton
plant pittospora leaf c.s. under light mircoscope with white background
Durian tree trunk
Starry Sky Galaxy
Diatoms are photosynthesising algae, they have a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
Cross-section of Gabbro photo through the microscope polarized light
Fossil Fern inside carbon rocks. The image was captured in the Swiss Alps.
Transmission electron microscope (TEM) micrograph showing dark melanin granules in a melanocyte (top center) and in several keratinocytes, which, unlike melanocytes, have bundles of keratin filaments
fish skin under light microscope with white background
Different vegetables, seeds and fruits on black table, flat lay. Sources of essential amino acids
Insect bitten leaf - negative image technique.
Photomicrograph of midge fly, Chironomidae family, eggs hatching. Eggs are encased in a gelatinous material that attracts debris. Live specimen. Larva about 0.5 mm long. Wet mount, 10X objective, transmitted brightfield illumination.
3D cartoon and Gaussian surface models, PDB 6kxs, white background
Free Images: "bestof:Ashmead - Phylogeny of the Hymenoptera - 1896.jpeg en First tree of the hymenoptera by ashmead The phylogeny of the Hymenoptera William Harris Ashmead 1896"
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