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    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines — Stock Photo
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines
    Female copepod with eggs — Stock Photo
    Female copepod with eggs
    Oligodendrocyte cell structure — Stock Photo
    Oligodendrocyte cell structure
    Tendon showing bundles of collagen fibres — Stock Photo
    Tendon showing bundles of collagen fibres
    Feet bacteria. Coloured scanning electron micrograph (SEM) of bacteria cultured from between toes of foot — Stock Photo
    Feet bacteria. Coloured scanning electron micrograph (SEM) of bacteria cultured from between toes of foot
    Cat flea head — Stock Photo
    Cat flea head
    Fracture through the thyroid gland — Stock Photo
    Fracture through the thyroid gland