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A molecular model of the hormone Hydrocortisone or Cortisol.  It has many effects on the human body, but is primarily released from the adrenal gland as a response to stress.  Isolated on white.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Clover, also called trefoil, are plants of the genus Trifolium, consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe.
Asbestos family mineral band in geological rock sample
Sample of biotite Schist, from the shear zone in the Beitbridge Complex in South Africa. Schist is metamorphic rock caused by pressure during medium grade metamorphism.
Automotive engine cover
In the field a small Spermacoce verticillata bush with flowers
Sambucus nigra. Common names include elder, elderberry, black elder, European elder, European elderberry and European black elderberry.
Beautiful view of sulfur emerald lake and Kawah Ijen volcano at East Java, Indonesia
chinese medicine  semen momordicae, Momordica cochinchinensis on black background
Neohalicholactone is unusual fatty acid metabolites having a cyclopropane ring and a nine-membered lactone. 3d illustration
Automotive Car engine part
closeup of sample of natural mineral from geological collection - raw crystalline Galena (Galenite, lead glance) rock isolated on white background
CNC machine Cutting Tools on White Background
Background from emerald green water saturated with radon. Flooded granite quarry, tree leaves.
White Elder Flower
New auto parts for cars on a white background
sunstone mineral stone sample macro photography
Prostaglandin D2 or PGD2 is a prostaglandin that binds to the receptor PTGDR as well as CRTH2. 3d illustration
Pittosporum (Pittosporum tobira), ornamental tree or bush with very scented leaves. Common hedge on Mediterranean. spring time istanbul
A single hemlock flower with leaf on white
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.
Gypsum rose with a crystal on a cut out background, Crystals resembling the shape of a rose
Zeolite crystals in cavities of Igneous volcanic basalt rock
cylinder head, of an internal combustion engine, petrol engine cylinder head being repaired on white isolated background
US currency,  copper Indian Head penny from 1862.
Mefloquine is a medication used to prevent or treat malaria.When used for prevention it is taken once a week and should be started one or two weeks before potential exposure. 3d illustration
Green quartz crystal isolated on the white background.
As machined head cylinder from iron casting ; close up
Hawthorn
Free Images: "bestof:Alkylboranes oxidation mechanism.PNG Alkylboranes oxidation mechanism Source Myself using ISIS/Draw Date 24 April 2007 2007-04-24 own assumed Apcpca Organic"
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