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Science background with molecule or atom

Hot river at Geothermalatea in the Haukadalur valley, east of Reykjavík, Iceland.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

A molecular model of Bisphenol A or BPA. It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses. Isolated on white.

Summer view of big chemical plant. Special equipment for producing nitrogen fertilizers such as ammonium nitrate, carbamide, methanol.

blue mold close up background, macro photography

Molecular model of insulin hormone, 3D illustration. It is produced by pancreas and takes part in glucose and lipid metabolism

Unique sandstone formations along the shoreline of Hornby Island, a popular travel destination along the west coast of Canada.

Cyclic adenosine monophosphate is a second messenger important in many biological processes. cAMP is a derivative of adenosine triphosphate and used for intracellular signal transduction in many different organisms, conveying the cAMP-dependent pathway. It should not be confused with 5'-AMP-activated protein kinase.

Neohalicholactone is unusual fatty acid metabolites having a cyclopropane ring and a nine-membered lactone. 3d illustration

beautiful agate texture. natural pattern. High quality photo

The activity at this terrace, named after the Roman goddess Minerva, known as the patron of artists and sculptors, changes significantly over time. The travertine cascades beside the boardwalks were primarily formed in the 1990s. In certain years, they lie dormant and dry. When dry, the intricate layers and varying depths of the terraces are clearly visible, revealing the complex history of their formation.

Chemical formula of Progesterone. Close-up.

Macro shot of bright cyan-colored crystals contrasting with a dark rocky terrain.

Geothermal area in the Haukadalur valley, east of Reykjavík, Iceland.

Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.

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Prostaglandin D2 or PGD2 is a prostaglandin that binds to the receptor PTGDR as well as CRTH2. 3d illustration

Amazing view of curvy, meandering Zavoj lake on Old Mountain, Serbia

A small pillar of frost formed on the soil in the early morning

Dopamine molecule, 3D illustration. A neuromodulatory molecule, a neurotransmitter, is a key part of the brain neurophysiology, also used as a drug

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

Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background

Shoshone Falls Hydroelectric plant on the Snake River at Twin Falls, Idaho.

Free Images: "bestof:Nepetalactone.svg Chemical structure of nepetalactone Own 14 29 28 November 2016 UTC Ed Edgar181 200px Nepetalactone"

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