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Green algae cells background
plant Zea Stem C.S. under light mircoscope with white background
The Raf/MEK/ERK (MAPK) propagates growth signals in the cell. Misregulation can lead to cancer.\nThe red dots on the active EGFR are phosphorylated tyrosines. PDB entries: 1egf, 1nql, 1m17, 2jwa, 3njp, 2gs6, 1gri, 1xd2, 3ksy, 5p21, 6xi7, 6q0j, 2y4i,
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.
Freshwater aquatic zooplankton and algae under microscope view
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.
Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification
Trematode parasite under a microscope
Planarian parasite (flatworm) under microscope view.
Liver Fluke Section under light microscope with white background
Leiden leaf c.s. under microscope
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.
Photomicrograph of algae, Cosmarium turpinii, a desmid. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
microscopy micrograph animal, conjugation of Paramecium caudatum, magnification 200X
plant pittospora leaf c.s. under light mircoscope with white background
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
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.
amazing inhabitants of the microworld under a microscope
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Epidermal growth factor (EGF) activates the EGF receptor (EGFR), that builds a heterodimer with HER3.  The signal transduction continues through GRB2/SOS, Ras,  Raf/MEK and ERK, that will activate many processes in the cell. Dysregulation is linked to cancer progression
Covid-19 vaccination record card with fictitious text
silver foil adhesive tape isolated on white background
Scenery of signs representing Dogenzaka in front of Shibuya Station,\nShooting information October 04, 2022, near JR Shibuya Station Hachiko Exit Scramble Crossing, Tokyo, Shibuya Ward, Japan,
Licmophora sp. is a genus of benthic diatom. It is an epiphyte, which means it must perch on another organism or object for structural stability
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Lily leaf c.s. under microscope
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
Free Images: "bestof:Homo heidelbergensis (Erstbeschreibung) 02.jpg of Homo heidelbergensis type specimen from Mauer near Heidelberg Germany ; original condition with adherent"
Parliamentary Groups of the Bundestag.svg
Het_korporaalschap_van_kapitein_Dirck_Jacobsz_Rosecrans_en_luitenant_Pauw_Rijksmuseum_SK-C-378.jpeg
Tree of life SVG.svg
Jacopo_de'_Barbari_-_View_of_Venice_-_Google_Art_Project.jpg
Homo_heidelbergensis_(Erstbeschreibung)_02.jpg
Homo_heidelbergensis_(Erstbeschreibung)_03.jpg
Homo_heidelbergensis_(Erstbeschreibung)_01.jpg
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Heidelberger Mensch Replik Rosensteinmuseum.jpg
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Venus of Tan-Tan.jpg
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Homo heidelbergensis - Fossils in the Arppeanum - DSC05511.JPG
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Burgos - Museo de la Evolución Humana (MEH) - Homo Heidelbergensis.JPG
Atlanthopus mauritanicus.jpg
Gran Dolina-Atapuerca-Panoramica edit3.jpg
Gran Dolina-Atapuerca-Panoramica edit.jpg
19_Shop_on_the_Via_Dolorosa_near_Eece_Homo_Arch,_Jerusalem.jpg
Hauptbahnhof Heidelberg.JPG
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Brunfelsia americana - Botanischer Garten - Heidelberg, Germany - DSC01103.jpg
Pitcairnia lignosa - Botanischer Garten - Heidelberg, Germany - DSC01216.jpg
Aloe juvenna - Botanischer Garten - Heidelberg, Germany - DSC01330.jpg
Tod mit Seifenblasen Michelsberg.jpg
Boxer sometimes called Homo Sapiens.jpg
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Antonello_da_Messina_Ecce_Homo_collection_privée.jpg
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De Maria Virgine ... - Upper cover (c47i11).jpg
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Anonymous_(Brabant)_Ecce_Homo_c._1520.jpg
Örtze im Gegenlicht.jpg
Wolfgangshof bei Anwanden.jpg
Wemding forest.jpg
1946 German censored mail.jpg
Naturalis Biodiversity Center - ZMA.MOLL.33341 - Planorbarius corneus (Linnaeus, 1758) - Planorbidae - Mollusc shell.jpeg
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Spitterfall.jpg
Tom Buhrow Heidelberg.jpg
Braunschweig_Monogrammist_(?)-_Ecce_Homo.jpg
ICE nach Frankfurt bei Strießen.jpg
Scheepsmolen.jpg
Naturalis Biodiversity Center - ZMA.MOLL.12429 - Mimachlamys varia varia (Linnaeus, 1758) - Pectinidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - ZMA.MOLL.32652 - Theodoxus fluviatilis (Linnaeus, 1758) - Neritidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - ZMA.MOLL.67865 - Viviparus contectus (Millet, 1813) - Viviparidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - ZMA.MOLL.69272 - Merdigera obscura (Müller, 1774) - Enidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - ZMA.MOLL.69458 - Viviparus contectus (Millet, 1813) - Viviparidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - RMNH.AVES.154141 2 - Acanthis flammea flammea (Linnaeus, 1758) - Fringillidae - bird skin specimen.jpeg
Naturalis Biodiversity Center - RMNH.AVES.154141 1 - Acanthis flammea flammea (Linnaeus, 1758) - Fringillidae - bird skin specimen.jpeg
Tollense-01.jpg
Cretaceous Orthoptera fossil.jpg
King Cypress Tree.jpg
Naturalis Biodiversity Center - RMNH.AVES.32356 1 - Stipiturus malachurus malachurus (Shaw, 1798) - Maluridae - bird skin specimen.jpeg
Naturalis Biodiversity Center - RMNH.AVES.32356 2 - Stipiturus malachurus malachurus (Shaw, 1798) - Maluridae - bird skin specimen.jpeg
Saalburg-Bahn_1900.jpg
Mair Chalice with passion of Christ set with gemstones 02.jpg
AD-Heumar.jpg
AD2009Aug07 Natrix natrix 02 round pupil.jpg
Naturalis Biodiversity Center - RMNH.AVES.57041 2 - Fringilla coelebs coelebs Linnaeus, 1758 - Fringillidae - bird skin specimen.jpeg
Naturalis Biodiversity Center - RMNH.AVES.57041 1 - Fringilla coelebs coelebs Linnaeus, 1758 - Fringillidae - bird skin specimen.jpeg
Naturalis Biodiversity Center - RMNH.AVES.57040 1 - Fringilla coelebs coelebs Linnaeus, 1758 - Fringillidae - bird skin specimen.jpeg
Naturalis Biodiversity Center - RMNH.AVES.57040 2 - Fringilla coelebs coelebs Linnaeus, 1758 - Fringillidae - bird skin specimen.jpeg
Train_crash_1897.jpg
The_Quarterly_journal_of_the_Geological_Society_of_London_(12512983613).jpg
Naturalis Biodiversity Center - RMNH.AVES.86142 1 - Phyllastrephus terrestris terrestris Swainson, 1837 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85988 2 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85992 1 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85991 2 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86183 2 - Emberiza impetuani A. Smith, 1836 - Emberizidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86183 1 - Emberiza impetuani A. Smith, 1836 - Emberizidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86051 2 - Promerops gurneyi gurneyi Verreaux, 1871 - Meliphagidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86051 1 - Promerops gurneyi gurneyi Verreaux, 1871 - Meliphagidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85992 2 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85988 1 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85987 1 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85991 1 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85989 1 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85989 2 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.85987 2 - Pycnonotus barbatus layardi Gurney, 1879 - Pycnonotidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86052 1 - Promerops gurneyi gurneyi Verreaux, 1871 - Meliphagidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86052 2 - Promerops gurneyi gurneyi Verreaux, 1871 - Meliphagidae - bird skin specimen.jpeg.jpg
Naturalis Biodiversity Center - RMNH.AVES.86142 2 - Phyllastrephus terrestris terrestris Swainson, 1837 - Pycnonotidae - bird skin specimen.jpeg.jpg
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