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    Boy embracing smiling senior man, looking at camera — Stock Photo
    Boy embracing smiling senior man, looking at camera
    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
    Boy with smart phone wearing protective mask to protect against COVID-19 during the Coronavirus World Pandemic, and his younger sister in the background; Toronto, Ontario, Canada — Stock Photo
    Boy with smart phone wearing protective mask to protect against COVID-19 during the Coronavirus World Pandemic, and his younger sister in the background; Toronto, Ontario, Canada
    Aerial view of a road winding through farmland divided into green and brown, with an electricity transmission line running across; Colorado, United States of America — Stock Photo
    Aerial view of a road winding through farmland divided into green and brown, with an electricity transmission line running across; Colorado, United States of America
    Boy embracing smiling senior man, looking at camera — Stock Photo
    Boy embracing smiling senior man, looking at camera
    Cobblestone lane in Soho at evening rush hour during the national lockdown for the Covid-19 pandemic; London, England, UK — Stock Photo
    Cobblestone lane in Soho at evening rush hour during the national lockdown for the Covid-19 pandemic; London, England, UK
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept — Stock Photo
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept
    Young girl standing holding protective mask in her hands during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing holding protective mask in her hands during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    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
    Electricity pylons near mountain landscape, Seattle, Washington, USA — Stock Photo
    Electricity pylons near mountain landscape, Seattle, Washington, USA
    AERIAL: Drone Shot of old Abandones Radio Tower Station in Rich Green Forest surrounded by Trees HQ — Stock Photo
    AERIAL: Drone Shot of old Abandones Radio Tower Station in Rich Green Forest surrounded by Trees HQ
    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
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen — Stock Photo
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen
    Wind turbines in a row along a ridge of a rugged landscape, near Kihei: Kihei, Maui, Hawaii, United States of America — Stock Photo
    Wind turbines in a row along a ridge of a rugged landscape, near Kihei: Kihei, Maui, Hawaii, United States of America
    Senior man and boy holding model boat outdoors — Stock Photo
    Senior man and boy holding model boat outdoors
    Neisseria gonorrhoeae bacterium — Stock Photo
    Neisseria gonorrhoeae bacterium
    Serious gray haired elderly repairman using tablet and watching video instruction while fixing old broken motorcycle in garage — Stock Photo
    Serious gray haired elderly repairman using tablet and watching video instruction while fixing old broken motorcycle in garage
    Minimalistic desert landscape with sandy dunes and clear blue sky in Emirates. Transmission towers at the distance. — Stock Photo
    Minimalistic desert landscape with sandy dunes and clear blue sky in Emirates. Transmission towers at the distance.
    Police Car parked — Stock Photo
    Police Car parked
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Power pylons and lines on rocky mountains — Stock Photo
    Power pylons and lines on rocky mountains
    Designers discussing prototype cog in workshop — Stock Photo
    Designers discussing prototype cog in workshop
    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
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    Cables for public transportation in low angle view — Stock Photo
    Cables for public transportation in low angle view
    Boy using his smart phone and wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Boy using his smart phone and wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice — Stock Photo
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    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.
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Network mesh with connected lines, digital abstract illustration. — Stock Photo
    Network mesh with connected lines, digital abstract illustration.
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery.
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible. — Stock Photo
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible.
    Roadside sign saying 'Please Stay Home' during the isolation of Covid-19 world pandemic; St. Albert, Alberta, Canada — Stock Photo
    Roadside sign saying 'Please Stay Home' during the isolation of Covid-19 world pandemic; St. Albert, Alberta, Canada
    Transmission Towers and Power Lines — Stock Photo
    Transmission Towers and Power Lines
    Grey metal tower, industrial building — Stock Photo
    Grey metal tower, industrial building
    Man wearing a mask and gloves holding his hands on his head as he walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Man wearing a mask and gloves holding his hands on his head as he walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    From below big red telecommunication tower on background of cloudy sky. — Stock Photo
    From below big red telecommunication tower on background of cloudy sky.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Sunrise On Highway with car — Stock Photo
    Sunrise On Highway with car
    Woman and her grandson smiling at each other — Stock Photo
    Woman and her grandson smiling at each other
    Landscape of TV tower Torre de Collserola with fog in Barcelona on cloudy day — Stock Photo
    Landscape of TV tower Torre de Collserola with fog in Barcelona on cloudy day
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue)
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Bottom view of black wires and high voltage power pole on background of dark cloudy sky. — Stock Photo
    Bottom view of black wires and high voltage power pole on background of dark cloudy sky.
    Zika virus particles — Stock Photo
    Zika virus particles
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Vintage car placed on street — Stock Photo
    Vintage car placed on street
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Driver seat with transmission lever skull handle — Stock Photo
    Driver seat with transmission lever skull handle
    Brucella bacteria, illustration. Gram-negative pleomorphic bacteria that cause brucellosis in cattle and humans and are transmitted to humans by direct contact with ill animal or by contaminated milk. — Stock Photo
    Brucella bacteria, illustration. Gram-negative pleomorphic bacteria that cause brucellosis in cattle and humans and are transmitted to humans by direct contact with ill animal or by contaminated milk.
    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
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    Low angle view of modern building facade with small satellites systems. — Stock Photo
    Low angle view of modern building facade with small satellites systems.
    Dramatic rocky cliffs along the shoreline with the orange glow of sunset; Cornwall County, England — Stock Photo
    Dramatic rocky cliffs along the shoreline with the orange glow of sunset; Cornwall County, England
    Neural network with connections, conceptual digital illustration. — Stock Photo
    Neural network with connections, conceptual digital illustration.