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Blue colored stem cells of a lentil plant under the microscope.

Particles, medical concept

Bacteria Aggregatibacter, 3D illustration. Aggregatibacter aphrophilus and A. actinomycetemcomitans, Gram-negative bacteria, part of the normal flora of the mouth and throat, also cause endocarditis

corn stem micrograph with dye

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.

Photomicrograph of a freshwater clustering single-celled green algae,

Abstract nano molecular structure

Green algae cells background

The study of plant tissues under the microscope in the laboratory.

Close up of cristal beads

Leiden leaf c.s. under microscope

Abstract particles

Colorful, abstract micrograph of a fish scale, calico bass,Paralabrax clathratus, with polarization at 40x.

Organic abstract image of a frost tipped hydrangea flower that has been heavily post processed in Lightroom and Topaz studios.

Fungi Aspergillus, Aspergillus fumigatus, Aspergillus niger, black mold, which produce aflatoxins, cause pulmonary infection aspergillosis. 3D illustration

Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.

Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.

Natural agate surfaces, suitable for backgrounds and wallpapers.

Colorful rainbow sea foam bubbles on the beach in Port Bolivar near Galveston, Texas created abstract ethereal images

Triangular pollen grains of

light abstraction, several dark dots on a pastel yellow-pink background. macro photo. mold under a microscope super macro photo

Metastatic breast cancer to lymph node. Estrogen receptor positive

traditional thai fabric

White and pink Pitaya Dragronfruit macro detail of black seeds full frame

Wild mushrooms in the grass, North China

Green illuminate glitter bokeh for background for concept and more idea for creative

Water algae cells - microscope magnification

Close-up photo of a marine lichen closeup. Sea life on a water's edge.

3d illustration of microscopic close up showing viruses and intestine villus into digestive tract

Yellow abstract background

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Ansel_Adams_-_Farm_workers_and_Mt._Williamson.jpg

Stroop Report - Warsaw Ghetto Uprising 06b.jpg

Miners at the American Radiator Mine, Mount Pleasant, Westmoreland County, Pennsylvania Digital ID- (digital file from original neg.) fsa 8a00958 http- hdl.loc.gov loc.pnp fsa.8a00958.jpg

Miners at American Radiator Mine, Mount Pleasant, Westmoreland County, Pennsylvania Digital ID- (digital file from original neg.) fsa 8a00946 http- hdl.loc.gov loc.pnp fsa.8a00946.jpg

Oenothera biennis FWS-00.jpg

Oenothera rhombipetala FWS-00.jpg

Coreopsis major FWS-1 4x3.jpg

Kotzebue, Alaska.jpg

Clintons lily clintonia umbellulata.jpg

Kasatochi Island, Alaska Maritime NWR.jpg

Aerial view of brooks range Alaska.jpg

Alaska range small waterfall on river.jpg

Isotria verticillata USFWS-1.jpg

Lake floatplane wake.jpg

Egegik Village on the Alaska Peninsula.jpg

Alaska islands and ocean visitor center bike racks.jpg

Aerial view of the trans Alaska oil pipeline.jpg

Bill_Thompson_(Tasmanian_convict)_grey.jpg

JMSDF_ship_Haruna_(DDH_141).jpg

P S Krøyer 1899 - Sommeraften ved Skagens strand. Kunstneren og hans hustru.jpg

South America - Blue Marble orthographic.jpg

Field camp on Alaska in winter.jpg

Close up of ice on lake shore with village in background.jpg

Hillary_Clinton_at_the_Senate_Armed_Services_Committee.jpg

Aboard_the_SS_Coamo_at_sea_two_days_out_of_New_York_fsa8a37302u.jpg

Crewmembers-walk-across-the-ships-flight-deck-before-the-sun-sets.jpg

Aerial shot of the San Diego border.jpg

Seaplane in shallows along an alaskan sandbar.jpg

Natural areas stone formation.jpg

Negro_boy_near_Cincinnati,_Ohio_(LOC).jpg

F-18F_after_launch_from_USS_Abraham_Lincoln_(CVN-72).jpg

No_Known_Restrictions_Ball_team_at_Irwinville_Farms,_Georgia_by_John_Vachon,_1938_(LOC)_(2106518804).jpg

Model_airplanes,_Union_Station_00253u.jpg

Workers_on_the_day_shift_at_the_Richmond,_California_shipyards_leaving_the_ferry_in_San_Francisco_fsa8b08495u.jpg

Night_view,_downtown_section,_Dallas,_Texas_ppmsca09600u.jpg

Under_the_elevated_railway,_Chicago,_Illinois_fsa8a06711u.jpg

Sixteenth_Street_Baptist_Church_section_of_the_Milestone_exhibition_gallery_in_the_Birmingham_Civil_Rights_Institute.jpg

Interior_view_of_the_basement_exhibition_at_the_Sixteenth_Street_Baptist_Church_in_Birmingham.jpg

Night-view-of-part-of-Santa-Fe-RR-yard-Kansas-City-Kansas.jpg

Digging an airplane out of the snow.jpg

Freight_Depot_of_the_US_Army_consolidating_station,_Chicago,_Illinois_fsac.1a34797u.jpg

Jim_Norris_and_wife,_homesteaders,_Pie_Town,_New_Mexico_(LOC_fsac.1a34109).jpg

Lower_Manhattan_seen_from_the_S.S._Coamo_leaving_New_York_II_fsa.8a37402u.jpg

Lower_Manhattan_seen_from_the_S.S._Coamo_leaving_New_York_fsa8a37399u.jpg

San_Juan,_Puerto_Rico._La_Perla,_the_slum_area.jpg

El_Morro,_the_historic_Spanish_fort_from_the_sea._San_Juan,_Puerto_Rico.jpg

Ramparts_of_El_Morro,_the_historic_Spanish_fort._San_Juan,_Puerto_Rico.jpg

Demonstration_in_support_of_the_Spanish_loyalists_in_the_workers'_quarter_of_Porta_de_Tierra._San_Juan,_Puerto_Rico.jpg

Baby_asleep_in_hammock._The_hammock_saves_space_in_a_shack_already_overcrowded._Puerta_de_Tierra,_San_Juan,_Puerto_Rico.jpg

View_of_a_portion_of_the_workers'_quarter_of_La_Perla_from_the_old_Spanish_ramparts._San_Juan,_Puerto_Rico.jpg

False foxglove flower aureolaria flava.jpg

Sylvia_Sweets_Tea_Room,_corner_of_School_and_Main_streets,_Brockton,_Massachusetts_fsac1a33856u.jpg

Clothes on line at winter.jpg

Stroop Report - Warsaw Ghetto Uprising 06.jpg

Frank_Tengle,_Bud_Fields,_and_Floyd_Burroughs,_cotton_sharecroppers,_Hale_County,_Alabama.jpg

Roadside_stand_near_Birmingham,_Alabama.jpg

15-07-05-Schloß-Caputh-RalfR-N3S_1712.jpg

Migrant_Mother,_alternative_version_(LOC_fsa.8b29523).jpg

Impala-männlich.jpg

American goldfinch.jpg

Bierstadt Albert Sunset in the Rockies.jpg

Northern_Cardinal_(Cardinalis_cardinalis).jpg

Orthoporus spp New Mexico.jpg

Desert catchfly.jpg

Polemonium vanbruntiae FWS-2.jpg

Polemonium vanbruntiae FWS-1.jpg

Observation deck on shoreline.jpg

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