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    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria. — Stock Photo
    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria.
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans — Stock Photo
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Colourful buildings on a hillside; Nuuk, Sermersooq, Greenland — Stock Photo
    Colourful buildings on a hillside; Nuuk, Sermersooq, Greenland
    From above crop anonymous male aviator pushing lever on dashboard while piloting modern aircraft during flight — Stock Photo
    From above crop anonymous male aviator pushing lever on dashboard while piloting modern aircraft during flight
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    False-colour transmission electron micrograph (TEM) of human striated muscle. — Stock Photo
    False-colour transmission electron micrograph (TEM) of human striated muscle.
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Grandmother cooking food and little boy peeling an apple at home — Stock Photo
    Grandmother cooking food and little boy peeling an apple at home
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles. — Stock Photo
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles.
    Neisseria gonorrhoeae bacterium — Stock Photo
    Neisseria gonorrhoeae bacterium
    Coronavirus (Covid-19) with a mask on a white background — Stock Photo
    Coronavirus (Covid-19) with a mask on a white background
    Power lines in desert landscape. — Stock Photo
    Power lines in desert landscape.
    Pilot operating airplane in cockpit — Stock Photo
    Pilot operating airplane in cockpit
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Windows boarded up on a building during national lockdown in London during the Covid-19 Global Pandemic; London, England — Stock Photo
    Windows boarded up on a building during national lockdown in London during the Covid-19 Global Pandemic; London, England
    Fenced balcony with blooming flowers in pots under cloudy sky in Province of Utrecht Netherlands — Stock Photo
    Fenced balcony with blooming flowers in pots under cloudy sky in Province of Utrecht Netherlands
    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph. — Stock Photo
    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph.
    Silhouette of power lines and pylon at sunset — Stock Photo
    Silhouette of power lines and pylon at sunset
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus — Stock Photo
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    A truck leaving a dusty trail when turning off one country road to another surrounded by farm fields with an electricity transmission line running across; Colorado, United States of America — Stock Photo
    A truck leaving a dusty trail when turning off one country road to another surrounded by farm fields with an electricity transmission line running across; Colorado, United States of America
    Top view minimalistic layout of bunch of multicolored electric cables on bright yellow background — Stock Photo
    Top view minimalistic layout of bunch of multicolored electric cables on bright yellow background
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Scenic view of power lines running through a forest of pruned pine trees, Illinois, USA — Stock Photo
    Scenic view of power lines running through a forest of pruned pine trees, Illinois, USA
    Highland against snowy mountain ridges at horizon under gray cloudy sky in Spain — Stock Photo
    Highland against snowy mountain ridges at horizon under gray cloudy sky in Spain
    Transmission Line By Road — Stock Photo
    Transmission Line By Road
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Neurone embedded in grey matter — Stock Photo
    Neurone embedded in grey matter
    3d illustration of synapse structure of human neurons while passing electrical signal. — Stock Photo
    3d illustration of synapse structure of human neurons while passing electrical signal.
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    Cables for public transportation in low angle view — Stock Photo
    Cables for public transportation in low angle view
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    Young girl standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Hepatitis C and Polio virus particles, digital illustration. — Stock Photo
    Hepatitis C and Polio virus particles, digital illustration.