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

Gastric mucosa intestinal metaplasia under microscopy

Science background with molecule or atom

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.

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

The retina contains two types of photoreceptors, rods and cones . Rods are needed for vision in low light, while cones provide vision in bright light, including color vision. Mutations in any of the genes associated with cone-rod dystrophy lead to a gradual loss of rods and cones in the retina.

Invasive pleomorphic lobular carcinoma (PLC) of the breast is a subtype of invasive lobular cancer which compromises approximately 1% of all epithelial breast malignancies and is characterized by higher nuclear pleomorphism and poorer prognosis than classic invasive lobular cancer (ILC)

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

Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer

Cell membrane cholesterol is shown in pink. 3D cartoon and Gaussian surface models, PDB 7rpk, white background.

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.

Bone spongy structure close-ups, normal and with osteoporosis

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

Cross-section leaf Plant of under the microscope for classroom education.

Abstract water drop seamless pattern. Colorful decorative texture. Vector backgrounds.

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

$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 \$

Adrenaline, also known as epinephrine, is a hormone and medication which is involved in regulating visceral functions (e.g., respiration). It appears as a white microcrystalline granule. Adrenaline is normally produced by the adrenal glands and by a small number of neurons in the medulla oblongata.

Photomicrograph of potato starch in cells of potato tuber, Solanum tuberosum. Starch is normally white but is stained blue with iodine to show better. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination. Note - very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.

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

A meningioma is a tumor that arises from the meninges — the membranes that surround the brain and spinal cord. Although not technically a brain tumor, it is included in this category because it may compress or squeeze the adjacent brain, nerves and vessels.

3d rendering of Bacteria are coated with an extra self-assembled lipid membrane to improve their survival against environmental assaults.

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.

3D cartoon and Gaussian surface models, PDB 6gu2, white background

Antique yellow gloster pattern paper marbling full frame.

Microscope photo of a sambucus stem with parenchyma cells.

abstract imagery of a fusion of colors and surfaces

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Maasai man, Eastern Serengeti, October 2006.jpg

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Black Backed Jackal Masaai Mara April 2008.JPG

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