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Chemical formula of Testosterone on a blackboard
Chemical formula of Cortisol
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Myxoid liposarcoma.  Myxoid/round cell liposarcoma, or MRCLS, is one of several types of liposarcoma. Liposarcoma is a rare cancer that grows in the cells that store fat in the body. MRCLS usually grows in the arms and legs. These tumors grow slowly, and they can spread to other parts of the body
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Inside protein molecule
Microcrystalline wax with chemical formula on white laboratory table.
plant Zea Stem C.S. under light mircoscope with white background
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Chemical formula of Progesterone
Structural model of Progesterone on the blackboard.
molecular symbol painted on the wall
Phenol in old glass bottle on a sheet of paper with chemical formulae (selective focus)
Surface photography of nature pattern Crystal shot for background.
Calcium carbonate chip in chemical watch glass with molecular structure on white laboratory table. Top view
Pheochromocytoma, Site: Adrenal gland
Bone morphogenetic proteins (BMPs) are a group of growth factors also known as cytokines and as metabologens. 3D cartoon and Gaussian surface models, white background.
Chemical formula of Adrenaline
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
DNA A-T Pair
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.
Overhead aerial drone view of oyster farm racks at low tide, flying at a low altitude to be able to see the detail of the oyster racks and seaweed. Located in a tidal estuary in Sutherland, Scotland. the low tides enable workers to access the racks for turning the oysters as they grow. Oysters have been farmed for many hundreds of years using this method. Seaweed has grown around the metal lines of racks.
CD47 also known as integrin associated protein is a transmembrane protein that in humans is encoded by the CD47 gene. CD47 belongs to the immunoglobulin superfamily and partners with membrane integrins and also binds the ligands thrombospondin-1 and signal-regulatory protein alpha. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 2jjt, white background
Photomicrograph of flatworm,
Flavin adenine dinucleotide, FAD molecule.  Essential redox-active coenzyme involved in energy production and metabolism. Molecular model. 3D rendering. Illustration
Molecular Model of Vitamin D.
Ferrocene is an organometallic compound. The molecule consists of two cyclopentadienyl rings bound on opposite sides of a central iron atom. 3d illustration
Magma
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Pentanisomerisierung.svg
Pentane isomerization.svg
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Lactase2.svg
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Duff Reaction V.1.svg
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Formation Spiro Orthocarbonate transesterification part 1 of 2.svg
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Formation Spiro Orthocarbonate condensation part 2 of 2.svg
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Homopolymerization Spiro orthoester part 2 of 2.svg
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Diacylperoxide Reaction V.1.svg
Murexide reaction.svg
Propylene and potassium permanganate.svg
1,2--3,4- formation.svg
Gewald Type Reaction V.1.svg
SPAAC Reaction.svg
Weiss 1,2Aldol V.2.svg
NgroupP11.svg
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Direct Ethanol Fuel Cell.svg
Photo-Fries Reaction V.1.svg
Millon Reaction Principle V.1.svg
FMH2-Bioluninescence.svg
2,2'-Dipyridyldisulfide Reaction.svg
Phenolate-cyanogenhalide-diphenylcarbonimidate.svg
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