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

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.

$Wet rough asphalt black bitumen road pavement surface abstract grunge texture close-up top view background banner.\nBitumen is a sticky, black, highly viscous liquid or semi-solid form of petroleum. In the U.S., it is commonly referred to as asphalt. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.\nTarmacadam is a road surfacing material made by combining crushed stone, sand, and tar. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces. The terms \$

Pancreatic neuroendocrine tumor, clear cell variant. Site: Pancreas.

Sebaceous glands are microscopic glands found in your hair follicles that secrete sebum 3d illustration

Hyaline cartilage, Elastic cartilage and Bone Human under the microscope in Lab.

Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway. Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.

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

$plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background$

Old orange and black scuffed damaged marbled paper, Original over 150+ years old

Breast tissue adenocarcinoma immunohistochemistry. Estrogen receptors.

Surface photography of nature pattern Crystal shot for background.

Characteristics of fungi living in wood as a group, are polyphyletic under the microscope for education.

Abstract background Organic Form - 3d rendered image of glass structure, optical technology, nano electrical wave, dispersion colorful rainbow. Organic shapes and form. Science fiction or organic technology concept.

forming of underskin cellulite illustration

Glycolic acid is a type of alpha hydroxy acid (AHA). Alpha hydroxy acids are natural acids found in foods. Glycolic acid comes from sugarcane. Alpha hydroxy acids like glycolic acid work by removing the top layers of dead skin cells. Glycolic acid also seems to help reverse sun damage to the skin.

Early stage, two days, fertilized human eggs before transfer to the woman in an IVF procedure.

Cerebellar granule cells, light micrograph. Cerebellar granular layer stained with Golgi silver chromate showing the abundance of granule cells. They have a very small rounded soma with three to five dendrites, ending in an enlargement called a dendritic claw. The dark thick traces are blood capillaries.

Squamous cell carcinoma of the lung is a type of lung cancer. It occurs when abnormal lung cells multiply out of control and form a tumor.

Host cells with spores (mold) are inside wood under the microscope for education.

abstract alloy texture design background.

Psoriasis Vulgaris, details of psoriatic skin disease, skin patches are typically red, itchy, and scaly, collage, macro with narrow focus

Close up of texture and colors of the bottom of a burnt pot.

$Fractal art background for creative design. Abstract fractal. Decoration for wallpaper desktop, poster, cover booklet, card. Psychedelic. Print for clothes, t-shirt. Magic graphics.$

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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Sewing_sign_advertisement_during_Great_Depression_-_Chapel_Hill,_NC.jpg

911:_New_York_City_Views,_09/11/2001..jpg

Secretary_Kerry_Meets_With_Central_American_Youth_Ambassadors.jpg

San_Bruno,_California._"Help_Wanted"_sign_displayed_for_newly_arrived_evacuees._There_was_much_wo_._._._-_NARA_-_537668.jpg

Quinten_Metsys_-_Triptyque_de_la_confrérie_de_Sainte-Anne_à_Louvain.jpg

MBTA_PCC_3228_MUed_along_Beacon_Street_just_after_coming_out_of_Cleveland_Circle_Terminal.jpg

Sylvia_Sweets_Tea_Room,_corner_of_School_and_Main_streets,_Brockton,_Massachusetts_fsac1a33856u.jpg

Lord_Frederic_Leighton_-_Cymon_and_Iphigenia_-_Google_Art_Project.jpg

Global tropical cyclone tracks-edit2.jpg

Fra_Angelico,_Fra_Filippo_Lippi,_The_Adoration_of_the_Magi.jpg

Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg