Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Microscopic moss leafs
Close up of cristal beads
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Gram stain of the bacterium, Staphylococcus aureus. This bacteria is gram positive, as such it appears purple after staining due to the thick peptidoglycan. The round cells are also seen in clusters.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
3d render hair follicle.
Probiotics, bacteria on white background. Bacteria and microorganisms. Microscopic probiotics, bacterial flora
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
Brain-derived neurotrophic factor and Neurotrophin-4, NT-3 are neurotrophic factors in the NGF (Nerve Growth Factor) family of neurotrophins. 3D cartoon and Gaussian surface models with differently colored chains, white background.
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.
Leiden leaf c.s. under microscope
Liver Fluke Section under light microscope with white background
Plant leaf cells structure, microscopic magnification
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Toxoplasma gondii oocyst under the microscope, isolated
tree background  nature
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Photomicrograph of a freshwater clustering single-celled green algae,
geranium leaf under microscope showing trichomes - optical microscope x200 magnification
Metastatic plasmacytoma, metastatic undifferentiated sarcoma. Microscopically show cellular material of mostly plasmacytiod cells. atypical mitoses are present. plasma cell tumor.
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
Host cells with spores (mold) are inside wood under the microscope for education.
plant Pumpkin ovary under light mircoscope with white background
Neurotrophin-3, NT-3, is a neurotrophic factor in the NGF (Nerve Growth Factor) family of neurotrophins. 3D cartoon and Gaussian surface models with differently colored chains, white background.
Stems, leaves, fruits and dried leaves of the Fragrant Screwpine wild plant on the beach with a background of blue sea and sunlight
Microscopic image of onion root tip cells undergoing mitosis. Anaphases and metaphases. 1000x magnified
Tree trunk with lush creeper plant with large leaves in a jungle outside Kandy in Sri Lanka
Free Images: "bestof:Perihepatic adhesions.jpg en perihepatic adhesions following a chlamydia infection de perihepatische Adhäsionen nach Chlamydieninfektion own Hic et nunc 2006"
Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
Great Wall of China July 2006.JPG
Bayeux_Tapestry_scene43_banquet_Odo.jpg
Sphinge Tuileries.jpg
Increase in high quality articles on English and German WP.png
Inukshuk Sunset Kuujjuaraapik January.jpg
Zaru ramen Paris.jpg
Easter eggs - straw decoration.jpg
Atalante 1 Lepautre Louvre MR 1804.jpg
Damas - mosquée des Omeyyades - plaque.jpg
A_Specimen_by_William_Caslon.jpg
LithuaniaHistory.png
Edwin_Smith_Papyrus_v2.jpg
PET-MIPS-anim.gif
Groene rups 4-5cm opgerold.jpg
Peru Machu Picchu Sunrise.jpg
Groene rups 4-5cm.jpg
Gottlieb-Jews_Praying_in_the_Synagogue_on_Yom_Kippur.jpg
Elefantetosha2.JPG
Jirafaetosha.JPG
Okaketosha.JPG
Gacelas en Etosha.jpg
Tomerdingen5.jpeg
Vaux-le-Vicomte2.jpg
Street sarlat.jpg
Halali.JPG
Sunset in Ioa.JPG
Catalpa bignonioides detail.jpg
Santorin harbour.JPG
Markushaus.jpeg
Sportheim.jpeg
Tomerdingen2.jpeg
Tomerdingen4.jpeg
Bois coupé structure.jpg
Cognac_C.H.D._Enfants_mariniers.jpg
Santorin sunset with windmill.JPG
Kirche.jpeg
Vernazza from above.JPG
Zwiefalten.jpeg
Zwiefalten2.jpeg
Zwiefalten3.jpeg
Zwiefalten4.jpeg
Zwiefalten5.jpeg
Zwiefalten7.jpeg
Zwiefalten8.jpeg
Zwiefalten16.jpeg
Zwiefalten17.jpeg
Prapratno, Croatia.JPG
Forteresse Salobrena.jpg
Keukenhof tulipes roses et vertes.JPG
Lindos Rhodes.jpg
Clôture orage Dordogne.jpg
Chêne glands.jpg
Dordogne Belvédère Domme.jpg
Balcon pierre château Fontainebleau.jpg
Fontainebleau château étang des carpes 1.jpg
Pelouse Champs-sur-Marne.jpg
Pinnacles Cathedral Seville Spain.jpg
Sendeanlage am Dach des ORF Tirol.jpg
Château Beynac 4 Dordogne.jpg
Cognac_L.-A._A._Montalivet.jpg
Cognac_16_Flore_XVIIIe_2014.jpg
Vaux le Vicomte b.jpg
Giant Tortoise.JPG
Répartition articles BA-ADQ.jpg
Khao Sok National Park View.JPG
Vase vaux le vicomte.jpg
Colonnes chapiteaux pantheon.jpg
Plaque rue de l'hopital (Tournus).jpg
Basilica Constantine Maxentius Forum Romanum Rome.jpg
Bell Tower, Oberammergau, Bavaria, Germany.jpg
Notre Dame chevet.jpg
Suleiman mosque Knight Rhodes.jpg
Anneau amarrage.jpg
Tour Madeleine Dordogne.jpg
20090510 Shanghai Jiangxi road wires.jpg
Château Chantilly et terrasse.jpg
Beynac vu de Castelnaud.jpg
36 quai des Orfèvres Paris.jpg
Fontaine fleuves concorde detail Triton.jpg
Wooden door lion heads Vienna.jpg
Structures roofs St Stephen's cathedral Vienna modifié-2.jpg
Oeil de boeuf Louvre.jpg
Pavillon Rohan Louvre.jpg
Fontainebleau château étang des carpes.jpg
Statue escalier fer à cheval Fontainebleau.jpg
Clocheton chapelle château Fontainebleau.jpg
Porte Baptistère Fontainebleau Extérieur.jpg
Statue Fontainebleau Charles Le Bourg.jpg
Détail battant porte dorée Fontainebleau.jpg
Vitrail Porte Dorée château Fontainebleau.jpg
Fronton porte baptistère Fontainebleau.jpg
Fontaine jardin de Diane Fontainebleau.jpg
Masque 1 porte baptistère Fontainebleau.jpg
Masque 2 porte du Baptistère Fontainebleau.jpg
Azalée du Japon Fontainebleau.jpg
Prairie et forêt parc Champs sur Marne.jpg
Château Champs sur Marne jet d'eau.jpg
Sphinx Champs sur Marne 1.jpg
Jet d'eau chevaux d'Apollon Champs sur Marne.jpg
Terms of Use   Search of the Day