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    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.
    Human silhouette showing heart with blood vessels and bronchial tree on white background. — Stock Photo
    Human silhouette showing heart with blood vessels and bronchial tree on white background.
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown) — Stock Photo
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown)
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Female back muscles, low angle view, computer illustration — Stock Photo
    Female back muscles, low angle view, computer illustration
    Colored magnetic resonance imaging scans of healthy brain of patient. — Stock Photo
    Colored magnetic resonance imaging scans of healthy brain of patient.
    Neck and back muscles in female body, computer illustration — Stock Photo
    Neck and back muscles in female body, computer illustration
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    Closeup view of French blinis heap on white plate — Stock Photo
    Closeup view of French blinis heap on white plate
    3d illustration of blue cells pattern with yellow nuclei. — Stock Photo
    3d illustration of blue cells pattern with yellow nuclei.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Green colored nerve cell on white background, digital illustration. — Stock Photo
    Green colored nerve cell on white background, digital illustration.
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Anatomy of human forearm muscles with labels — Stock Photo
    Anatomy of human forearm muscles with labels
    Closeup view of one red crab on tissue — Stock Photo
    Closeup view of one red crab on tissue
    Columnar epithelium structure — Stock Photo
    Columnar epithelium structure
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel. — Stock Photo
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel.
    Poppy and bacon dumplings with cabbage salad — Stock Photo
    Poppy and bacon dumplings with cabbage salad
    Transitional epithelium in urinary bladder, digital illustration. — Stock Photo
    Transitional epithelium in urinary bladder, digital illustration.
    Female skeleton with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female skeleton with visible outer intercostal muscles, computer illustration.
    Male baseball player muscles while holding bat, computer illustration. — Stock Photo
    Male baseball player muscles while holding bat, computer illustration.
    Close-up of paper towel roll swirl. — Stock Photo
    Close-up of paper towel roll swirl.
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut — Stock Photo
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut
    African American girl social distancing at home during quarantine lockdown, wearing a stripped t-shirt, covering her nose with a tissue while sneezing, in a garden on a sunny day. — Stock Photo
    African American girl social distancing at home during quarantine lockdown, wearing a stripped t-shirt, covering her nose with a tissue while sneezing, in a garden on a sunny day.
    Nerve cell structure in cross section on white background, digital illustration. — Stock Photo
    Nerve cell structure in cross section on white background, digital illustration.
    Closeup view of Panettone with icing sugar on tissue and round wooden board — Stock Photo
    Closeup view of Panettone with icing sugar on tissue and round wooden board
    Toasted cheese sandwiches and tomato soup — Stock Photo
    Toasted cheese sandwiches and tomato soup
    Female body with visible back muscles, computer illustration — Stock Photo
    Female body with visible back muscles, computer illustration
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease — Stock Photo
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease
    Tween girl looking at her laptop screen during a zoom class meeting — Stock Photo
    Tween girl looking at her laptop screen during a zoom class meeting
    Caucasian female nurse, cleaning a smartphone with a tissue and wearing face mask. Medical care at home during Covid 19 Coronavirus quarantine. — Stock Photo
    Caucasian female nurse, cleaning a smartphone with a tissue and wearing face mask. Medical care at home during Covid 19 Coronavirus quarantine.
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    View of Triceps muscle — Stock Photo
    View of Triceps muscle
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Close-up of salad with fork and knife on table in cafe — Stock Photo
    Close-up of salad with fork and knife on table in cafe
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease — Stock Photo
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease
    Male back, neck and head muscles, computer illustration. — Stock Photo
    Male back, neck and head muscles, computer illustration.
    Cross-section through a fallopian tube — Stock Photo
    Cross-section through a fallopian tube
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis. — Stock Photo
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis.
    View of Trapezius muscle, — Stock Photo
    View of Trapezius muscle,
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Closeup view of green fruit salad and whole fruit — Stock Photo
    Closeup view of green fruit salad and whole fruit
    Muscle anatomy of human arm and hand white background — Stock Photo
    Muscle anatomy of human arm and hand white background
    Structure of compact bone, light micrograph. — Stock Photo
    Structure of compact bone, light micrograph.
    Closeup view of person holding a breaded escalope in a bread roll — Stock Photo
    Closeup view of person holding a breaded escalope in a bread roll
    Human heart with blood vessels and bronchial tree on white background. — Stock Photo
    Human heart with blood vessels and bronchial tree on white background.
    Human smooth muscle, light micrograph. — Stock Photo
    Human smooth muscle, light micrograph.
    Anatomy of human skin — Stock Photo
    Anatomy of human skin
    Cross section of human eye on white background — Stock Photo
    Cross section of human eye on white background
    Tumour growth, computer illustration — Stock Photo
    Tumour growth, computer illustration
    Fresh ripe blueberries — Stock Photo
    Fresh ripe blueberries
    Top view of sponge fingers and coffee cup — Stock Photo
    Top view of sponge fingers and coffee cup
    Lactobacillus bulgaricus bacteria — Stock Photo
    Lactobacillus bulgaricus bacteria
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow).
    Shoulder muscles, bones and joints of female body, computer illustration — Stock Photo
    Shoulder muscles, bones and joints of female body, computer illustration
    Abstract close-up of green fabric structure, digital illustration. — Stock Photo
    Abstract close-up of green fabric structure, digital illustration.
    View of Deltoid muscle — Stock Photo
    View of Deltoid muscle
    Gemellus muscles in human hip bones, computer illustration. — Stock Photo
    Gemellus muscles in human hip bones, computer illustration.
    Human heart with vessels, lungs and bronchial tree in x-ray effect on black background. — Stock Photo
    Human heart with vessels, lungs and bronchial tree in x-ray effect on black background.
    Human skin anatomy and blood supply — Stock Photo
    Human skin anatomy and blood supply