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    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.
    Oligodendrocyte cell structure — Stock Photo
    Oligodendrocyte cell structure
    Computer circuit board and human brain — Stock Photo
    Computer circuit board and human brain
    Aulacodiscus oregonus diatom — Stock Photo
    Aulacodiscus oregonus diatom
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Coloured scanning electron micrograph of cancer cells from colon. — Stock Photo
    Coloured scanning electron micrograph of cancer cells from colon.
    Tendon showing bundles of collagen fibres — Stock Photo
    Tendon showing bundles of collagen fibres
    Acrospaera radiolarian shell — Stock Photo
    Acrospaera radiolarian shell
    Colored scanning electron micrograph showing urethral epithelium of urethra. — Stock Photo
    Colored scanning electron micrograph showing urethral epithelium of urethra.
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Nanostructures formed on a titanium surface — Stock Photo
    Nanostructures formed on a titanium surface
    Blood clot or thrombus — Stock Photo
    Blood clot or thrombus
    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.
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Boy using digital tablet under sheet — Stock Photo
    Boy using digital tablet under sheet
    Microvilli of gallbladder surface — Stock Photo
    Microvilli of gallbladder surface
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Smiling couple with headphones using digital tablet — Stock Photo
    Smiling couple with headphones using digital tablet
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae. — Stock Photo
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae.
    Coloured scanning electron micrograph (SEM) of Surface recording grooves of a 78 rpm phonograph record. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Surface recording grooves of a 78 rpm phonograph record.
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. — Stock Photo
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ.
    Portrait of smiling businessman in corridor in modern office — Stock Photo
    Portrait of smiling businessman in corridor in modern office
    Unrecognizable person vaping and using smartphone to take photo of cup of fresh coffee while sitting at wooden table in countryside — Stock Photo
    Unrecognizable person vaping and using smartphone to take photo of cup of fresh coffee while sitting at wooden table in countryside
    Businessman using digital tablet at sidewalk cafe in Venice — Stock Photo
    Businessman using digital tablet at sidewalk cafe in Venice
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Healthy human skin — Stock Photo
    Healthy human skin
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Young adult asian man using digital tablet at home — Stock Photo
    Young adult asian man using digital tablet at home
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Eyelash follicle, coloured scanning electron micrograph (SEM). — Stock Photo
    Eyelash follicle, coloured scanning electron micrograph (SEM).
    Senior man using digital tablet — Stock Photo
    Senior man using digital tablet
    Senior man using digital tablet on lounge chair in backyard — Stock Photo
    Senior man using digital tablet on lounge chair in backyard
    Cancellous Bone tissue — Stock Photo
    Cancellous Bone tissue
    Salmonella typhimurium bacterium — Stock Photo
    Salmonella typhimurium bacterium
    White blood cells — Stock Photo
    White blood cells
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Young woman in wheelchair paying bills at laptop — Stock Photo
    Young woman in wheelchair paying bills at laptop
    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
    Teenage couple hanging out using digital tablet — Stock Photo
    Teenage couple hanging out using digital tablet
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli — Stock Photo
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli
    Atmospheric view of silhouette of crowd at concert — Stock Photo
    Atmospheric view of silhouette of crowd at concert
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow) — Stock Photo
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow)
    Portrait cool young man with vape pen blowing smoke in neon light — Stock Photo
    Portrait cool young man with vape pen blowing smoke in neon light
    Chinese couple looking at smartphone in electronics store — Stock Photo
    Chinese couple looking at smartphone in electronics store
    Colored scanning electron micrograph of mains cable damaged by mouse teeth. — Stock Photo
    Colored scanning electron micrograph of mains cable damaged by mouse teeth.
    Woman leaning against railing, text messaging with cell phone — Stock Photo
    Woman leaning against railing, text messaging with cell phone
    Coloured scanning electron micrograph (SEM) Pet dander. dog hair, cat hair and dead skin. — Stock Photo
    Coloured scanning electron micrograph (SEM) Pet dander. dog hair, cat hair and dead skin.
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba. — Stock Photo
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba.
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame).