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    Papillae on the upper surface of a rose flower petal (Rosa sp), coloured scanning electron micrograph (SEM). — Stock Photo
    Papillae on the upper surface of a rose flower petal (Rosa sp), coloured scanning electron micrograph (SEM).
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Light micrograph showing cross section of lichen and fungi. — Stock Photo
    Light micrograph showing cross section of lichen and fungi.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Broom pollen grain — Stock Photo
    Broom pollen grain
    Portrait of three engineers on a construction site power plant — Stock Photo
    Portrait of three engineers on a construction site power plant
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    A girl photographs potted plants that she has grown in her home garden — Stock Photo
    A girl photographs potted plants that she has grown in her home garden
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Smartphone and notebook on table with water glasses — Stock Photo
    Smartphone and notebook on table with water glasses
    Light micrograph showing cross section of lichen and fungi. — Stock Photo
    Light micrograph showing cross section of lichen and fungi.
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM). — Stock Photo
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM).
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem. — Stock Photo
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem.
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Engineer in electric power plant using his smartphone inside condenser room — Stock Photo
    Engineer in electric power plant using his smartphone inside condenser room
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Steel workers talking on cell phone in factory — Stock Photo
    Steel workers talking on cell phone in factory
    Woman with cap sitting with skateboard — Stock Photo
    Woman with cap sitting with skateboard
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    The girl has breakfast and looks at the phone — Stock Photo
    The girl has breakfast and looks at the phone
    Smiling engineer talking on cell phone at sunny wind turbine power plant — Stock Photo
    Smiling engineer talking on cell phone at sunny wind turbine power plant
    Friends on beach with green plants — Stock Photo
    Friends on beach with green plants
    Marsh marigold carpel — Stock Photo
    Marsh marigold carpel
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Smiling businessman talking over cell while sitting at cafe table with laptop — Stock Photo
    Smiling businessman talking over cell while sitting at cafe table with laptop
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Businessman working on laptop and calling over cell in cafe — Stock Photo
    Businessman working on laptop and calling over cell in cafe
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem. — Stock Photo
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem.
    Eyeglasses and notebook on table with digital tablet and smart phone — Stock Photo
    Eyeglasses and notebook on table with digital tablet and smart phone
    Boy doing his lessons at home — Stock Photo
    Boy doing his lessons at home
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM). — Stock Photo
    Conductive vessel element in mountain mahogany wood (Cercocarpus sp), coloured scanning electron micrograph (SEM).
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Senior women with camera phone in home decor shop — Stock Photo
    Senior women with camera phone in home decor shop
    Women shopping, holding succulent plant in home decor shop — Stock Photo
    Women shopping, holding succulent plant in home decor shop
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    A girl takes pictures on a smartphone of plants, for her blog, which she has grown in her home garden — Stock Photo
    A girl takes pictures on a smartphone of plants, for her blog, which she has grown in her home garden
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    A girl photographs potted plants that she has grown in her home garden — Stock Photo
    A girl photographs potted plants that she has grown in her home garden