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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).
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Angel trumpets pollen grain — Stock Photo
    Angel trumpets pollen grain
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Marsh marigold carpel — Stock Photo
    Marsh marigold carpel
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    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
    Modern photovoltaic panel installed in solar power farming station under blue sky on sunny day — Stock Photo
    Modern photovoltaic panel installed in solar power farming station under blue sky on sunny day
    Businessman talking on cell phone at modern office — Stock Photo
    Businessman talking on cell phone at modern office
    Digital illustration of pollen grain on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grain on anther of Chinese hibiscus flower.
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    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).
    Light micrograph showing cross section of lichen and fungi. — Stock Photo
    Light micrograph showing cross section of lichen and fungi.
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Broom pollen grain — Stock Photo
    Broom pollen grain
    Friends on beach with green plants — Stock Photo
    Friends on beach with green plants
    Senior women shopping in home decor shop — Stock Photo
    Senior women shopping in home decor shop
    Light micrograph of plant cells. Plant cells have cell walls, constructed outside the cell membrane and composed of cellulose, hemicelluloses, and pectin. — Stock Photo
    Light micrograph of plant cells. Plant cells have cell walls, constructed outside the cell membrane and composed of cellulose, hemicelluloses, and pectin.
    Sunflower pollen structure — Stock Photo
    Sunflower pollen structure
    Black-haired woman using cell against of flowers — Stock Photo
    Black-haired woman using cell against of flowers
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea 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
    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).
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Businessman working on laptop and calling over cell in cafe — Stock Photo
    Businessman working on laptop and calling over cell in cafe
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Geranium sp. pollen grain — Stock Photo
    Geranium sp. pollen grain
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Rapeseed pollen grain — Stock Photo
    Rapeseed 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.
    Woman with cap sitting with skateboard — Stock Photo
    Woman with cap sitting with skateboard
    Rutilaria epsilon diatom — Stock Photo
    Rutilaria epsilon diatom
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Engineer in electric power plant using his smartphone inside condenser room — Stock Photo
    Engineer in electric power plant using his smartphone inside condenser room
    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
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Women shopping, holding succulent plant in home decor shop — Stock Photo
    Women shopping, holding succulent plant in home decor shop
    Steel worker texting with cell phone taking a break in factory — Stock Photo
    Steel worker texting with cell phone taking a break in factory
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf