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

Patient lying on the examination table receiving his dose of collagen and vitamins in injection applied directly to the face

Science background with molecule or atom

A molecular model of the plasticizer Dibutyl Phthalate or DBP. As a plasticizer it has been used in many products including adhesives, textiles, cosmetics and children's toys. There are now concerns about its health effects, particularly its effect on male health and behaviour. Isolated on white.

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

Biological protein and molecule, 3d rendering. 3D illustration.

$The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.$

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background

3D rendering of microscopic particles and bubbles

3d illustration of molecule model. Science or medical background with molecules and atoms.

From left to right: the NMDA and AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht, 3kg2, 6d6u

$Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.$

Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering

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.

Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration

Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.

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

Artificial molecular structure in many colors. Horizontal composition, isolated on white background.

After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.

Calcidiol molecule, also called calcifediol, major circulating metabolite of vitamin D3 produced in liver, 3D illustration

3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.

Free Images: "bestof:Xylenes.png Chemical structures of ortho- meta- and para-xylenes Selfmade with ChemDraw 2006-07-21 Calvero PD Image O-Xylene png Image M-Xylene png Image"

Earth with rings (transparent background).png

Mahdist in the Khalifa's house, Omdurman, Sudan.png

Bringing Polymer Patterns into Focus (5940988602).jpg

S.M._Linienschiff_Baden_-_restoration,_borderless.jpg

Sidney_Hall_-_Urania's_Mirror_-_Capricornus.png

S.M. kleiner kreuzer Gazelle - restoration.jpg

Hubble Extreme Deep Field (full resolution).png

Charles Follen McKim by Frances Benjamin Johnston.jpg

Sarah Vaughan - William P. Gottlieb - No. 2.jpg

Hiroshige_II_-_Kishu_kumano_iwatake_tori_-_Shokoku_meisho_hyakkei.jpg

Ivan Logginovitch Goremykin, c. 1906.jpg

Toni_Frissell_-_Frida_Kahlo,_seated_next_to_an_agave.jpg

$Wtc-photo.jpg$

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Sidney_Hall_-_Urania's_Mirror_-_Capricornus_-_original.tif

Sarah Vaughan - William P. Gottlieb - No. 1.jpg

First Colored Senator and Representatives.jpg

"A New Sandow Pose (VIII)", Eugen Sandow Wellcome L0035270 - restoration.jpg

Lord_Byron_-_Childe_Harold's_Pilgimage_-_Dugdale_edition.jpg

Moenitarri_warrior_in_the_costume_of_the_dog_danse_0056v.jpg

Samuel_D._Ehrhart_-_An_International_High_Noon_Divorce_(1906).jpg

Gavin_Hamilton_-_Coriolanus_Act_V,_Scene_III_edit2.jpg

Georges_Rochegrosse's_poster_for_Jules_Massenet's_Don_Quichotte.jpg

Sidney_Hall_-_Urania's_Mirror_-_Perseus.jpg

Sidney_Hall_-_Urania's_Mirror_-_Pisces.jpg

Sidney_Hall_-_Urania's_Mirror_-_Taurus.jpg

Sidney_Hall_-_Urania's_Mirror_-_Cancer.jpg

Sidney_Hall_-_Urania's_Mirror_-_Cepheus.jpg

Sidney_Hall_-_Urania's_Mirror_-_Gemini.jpg

Sidney_Hall_-_Urania's_Mirror_-_Virgo.jpg

Sidney_Hall_-_Urania's_Mirror_-_Libra.jpg

Sidney_Hall_-_Urania's_Mirror_-_Scorpio.jpg

John_Lorimer_Worden_-_Mathew_Brady_-_left_photograph.jpg

Tameing_a_Shrew;_or,_Petruchio's_Patent_Family_Bedstead,_Gags_&_Thumscrews.png

Gilbert_Duprez_&_Rosine_Stoltz_in_Donizetti's_La_Favorite.jpg

Émile_Bertrand_-_Jules_Massenet_-_Cendrillon_poster.jpg

Sidney_Hall_-_Urania's_Mirror_-_Auriga.jpg

Sidney_Hall_-_Urania's_Mirror_-_Aquarius,_Piscis_Australis_&_Ballon_Aerostatique.jpg

Sidney_Hall_-_Urania's_Mirror_-_Aries_and_Musca_Borealis.jpg

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Sidney_Hall_-_Urania's_Mirror_-_Hercules_and_Corona_Borealis.jpg

Sidney_Hall_-_Urania's_Mirror_-_Draco_and_Ursa_Minor.jpg

East_and_West_Shaking_hands_at_the_laying_of_last_rail_Union_Pacific_Railroad_-_Restoration.jpg

Chrysler_Building_spire,_Manhattan,_by_Carol_Highsmith_(LOC_highsm.04444).png

Sidney_Hall_-_Urania's_Mirror_-_Monoceros,_Canis_Minor,_and_Atelier_Typographique.jpg

Sidney_Hall_-_Urania's_Mirror_-_Gloria_Frederici,_Andromeda,_and_Triangula.jpg

Sidney_Hall_-_Urania's_Mirror_-_Lacerta,_Cygnus,_Lyra,_Vulpecula_and_Anser.jpg

Sidney_Hall_-_Urania's_Mirror_-_Lynx_and_Telescopium_Herschilii.jpg

Sidney_Hall_-_Urania's_Mirror_-_Delphinus,_Sagitta,_Aquila,_and_Antinous.jpg

Sidney_Hall_-_Urania's_Mirror_-_Leo_Major_and_Leo_Minor.jpg

Adolphe-Joseph-Louis Alizard from Le Charivari.jpg

Frances Benjamin Johnston, Self-Portrait (as "New Woman"), 1896.jpg

Yalta_Conference_(Churchill,_Roosevelt,_Stalin)_(B&W).jpg

George_Romney_-_William_Shakespeare_-_The_Tempest_Act_I,_Scene_1.jpg

Antonio_da_Trento_-_The_Tiburtine_sibyl_and_the_Emperor_Augustus.jpg

Edward_Walsh_-_Queenstown,_Upper_Canada_on_the_Niagara_(a.k.a._Queenston,_Ontario).jpg

Julia_Margaret_Cameron_-_John_Herschel_(Metropolitan_Museum_of_Art_copy,_restored).jpg

Alfred_T._Palmer_-_Assembling_the_North_American_B-25_Mitchell_at_Kansas_City,_Kansas_(USA).jpg

Sidney_Hall_-_Urania's_Mirror_-_Sagittarius_and_Corona_Australis,_Microscopium,_and_Telescopium.jpg

Sidney_Hall_-_Urania's_Mirror_-_Taurus_Poniatowski,_Serpentarius,_Scutum_Sobiesky,_and_Serpens.jpg

Sidney_Hall_-_Urania's_Mirror_-_Canis_Major,_Lepus,_Columba_Noachi_&_Cela_Sculptoris.jpg

Levi Morton - Brady-Handy portrait - standard crop.jpg

Sidney_Hall_-_Urania's_Mirror_-_Bootes,_Canes_Venatici,_Coma_Berenices,_and_Quadrans_Muralis.jpg