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Calvin cycle illustration
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Calvin cycle illustration
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Calvin cycle illustration
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Illustration of temperature-sensing areas in a seed The blue cells sense cold They suppress germination of the seed in conditions that are too cold
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Illustration of temperature-sensing areas in a seed The blue cells sense cold They suppress germination of the seed in conditions that are too cold
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Moth on decayed vegetation by Amy D White Design Pics
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Close-up of Smooth Solomons Seal buds (Polygonatum biflorum); North Carolina United States of America by Amy D White Design Pics
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Mosses and lichens growing out of wood by Amy D White Design Pics
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Moth clinging to dead grass by Amy D White Design Pics
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Editorial use only Svante Paabo (born 1955) Swedish evolutionary geneticist Paabo is director of genetics at the Max Planck Institute for Evolutio
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Close-up of a budding Flame Azalea (Rhododendron calendulaceum); North Carolina United States of America by Amy D White Design Pics
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Reflections of cottonwood tree branches in Halls Creek Bay Glen Canyon National Recreation Area Utah USA; Utah United States of America by Michae
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Vegetables grow in a hydroponic nursery; Stanley Falkland Islands by Joel Sartore Photography Design Pics
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Large grub in a decaying log a main food source for woodpeckers in the White River National Wildlife Refuge Arkansas USA; Arkansas United States
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Tiny bush tree hopper Eurymeloides spp Satara Maharashtra India by ZoonarRealityImages
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Black and white beans closeup shot Phaseolus vulgaris
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Sheep (Ovis aries) grazing in a vineyard in autumn in the Douro River Valley of Portugal; Douro River Valley Portugal by Michael Melford Design Pi
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Sheep (Ovis aries) grazing in a vineyard in autumn in the Douro River Valley of Portugal; Douro River Valley Portugal by Michael Melford Design Pi
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Fronds of a log fern Dryopteris celsa unfurling in springtime; Framingham Massachusetts by Darlyne Murawski Design Pics
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Editorial use only Theodor Wilhelm Engelmann (1843-1909) German physiologist and botanist Engelmanns main area of research was the physiology of
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A cluster of bonsai Japanese maple trees (Acer palmatum); New York by Darlyne Murawski Design Pics
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A Climbing false buckwheat vine in fall colors winding around a cattail stem; Concord Great Meadows National Wildlife Massachusetts by Darlyne
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Lateral view of a floating fern Salvinia species with roots in water; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close up of an anemone flower and buds Anemone tomentosa; Brewster Cape Cod Massachusetts by Darlyne Murawski Design Pics
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A rice paper butterfly Idea leuconoe pollinating pink flowers; Westford Massachusetts by Darlyne Murawski Design Pics
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Blazing star plants in bloom Liatris spicata; Sandwich Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Close up of blazing-star flowers Liatris spicata; Sandwich Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Cones and branches of a blue cone Korean fir Abies koreana; Framingham Massachusetts by Darlyne Murawski Design Pics
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Close up of an inflorescence of a Fullers teasel Dipsacus fullonum; Sandwich Massachusetts by Darlyne Murawski Design Pics
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Friedrich Serturner Portrait of Friedrich Wilhelm Serturner (1783-1841) German pharmacist and morphine pioneer After being apprenticed to an apothe
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Close up of rabbits foot fern spores Phlebodium aureum; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close up of a yellow and white iris flower; Brewster Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Adventitious plantlets growing on a mother of thousands leaf margin; Arlington Massachusetts by Darlyne Murawski Design Pics
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Close up of purple heart flower and bracts Tradescantia pallida; Framingham Massachusetts by Darlyne Murawski Design Pics
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Close up of the pink stigma of a rhododendron flower in springtime; Brewster Massachusetts by Darlyne Murawski Design Pics
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A tank bromeliad with purple flowers in center Neoregelia species; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of fuchsia flowers and buds Fuchsia species; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of a purple anemone flower Anemone coronari; Arlington Massachusetts by Darlyne Murawski Design Pics
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Close up of flower buds of a Solomons seal Polygonatum commutatum; Framingham Massachusetts by Darlyne Murawski Design Pics
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Rat cocaine research Rat seen with cocaine The rat may be used to study addiction or any of the other physiological effects of taking cocaine Cocai
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Close up of two jade vine flowers Strongylodon macrobotrys; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close up of a pink tulip magnolia flower Magnolia liliflora; Cambridge Massachusetts by Darlyne Murawski Design Pics
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Close up of a Cyclamen persicum flower; Lexington Massachusetts by Darlyne Murawski Design Pics
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Close up of nodding pink lily flowers Lilium martagon; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of a jade vine Strongylodon macrobotrys with flower buds; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close up of a tiny blue scilla flower in the early spring; Cambridge Massachusetts by Darlyne Murawski Design Pics
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Bee sipping nectar from a bright pink flower; Arlington Massachusetts by Darlyne Murawski Design Pics
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Monarch butterflies Danaus plexippus at flowers on migration route; Rio Grande Valley Mission Texas by Darlyne Murawski Design Pics
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Japanese maple tree (Acer palmatum) leaves covered with dew; New York by Darlyne Murawski Design Pics
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Mangrove aerial roots Mangroves have evolved a number of physiological and morphological traits that enable them to grow in salty saturated soils A
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A Cordyceps rises from a dead ant that the fungus infected as a spore and then consumed; United States by Darlyne Murawski Design Pics
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A large red dahlia flower and bud covered in water drops; Brewster Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Several Japanese Maple trees Acer palmatum in the fall; New York by Darlyne Murawski Design Pics
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A Japanese maple with colorful red foliage at a streams edge; New York by Darlyne Murawski Design Pics
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Large bright pink peony flowers Paeonia species with rain drops; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Group of allium inflorescences with flowers and buds; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of white and pink moth orchids Phalaenopsis species; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of Phalaenopsis orchid blossoms; Arlington Massachusetts by Darlyne Murawski Design Pics
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Large pink lily flower with black background; Arlington Massachusetts by Darlyne Murawski Design Pics
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Linoleic acid Computer model of a molecule of linoleic acid an omega-6 essential fatty acid Atoms are represented as spheres and are colour- coded;
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Close up of purple crocus flowers with orange pistil and stamens; Arlington Massachusetts by Darlyne Murawski Design Pics
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Allium plants with purple flowers and green buds; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of white and red lily flowers buds and leaves in spring; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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A cluster of yellow and blue pansies Viola species with raindrops; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of the flowers of a tropical rhododendron Vireya species; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close-up of a glory-of-the-snow flower Chionodoxa species; Jamaica Plain Massachusetts by Darlyne Murawski Design Pics
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Close up of dogwood flowers Cornus florida in late spring; Belmont Massachusetts by Darlyne Murawski Design Pics
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Close up of a large red dahlia flower with water drops; Brewster Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Close up of a large white and yellow tulip flower in springtime; Boylston Massachusetts by Darlyne Murawski Design Pics
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Wilhelm Ludwig Johanssen Historical portrait of the Danish geneticist Wilhelm Ludwig Johanssen (1857-1927) Johanssen coined the word gene for the
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Large white lily; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Large red lily flowers; Longwood Gardens Pennsylvania by Darlyne Murawski Design Pics
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Close up of an anthurium flower; New Hampshire by Darlyne Murawski Design Pics
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Close up of a daffodil cultivar Narcissus species in springtime; Boylston Massachusetts by Darlyne Murawski Design Pics
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Weeping cherry blossoms and branches Prunus species in springtime; Jamaica Plain Massachusetts by Darlyne Murawski Design Pics
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Close up of lilac flowers Syringa x hyacinthiflora in springtime; Jamaica Plain Massachusetts by Darlyne Murawski Design Pics
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Patch of flowering white trillium Trillium grandiflorum in spring; Framingham Massachusetts by Darlyne Murawski Design Pics
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Close up of cherry blossoms Prunus species in springtime; Providence Rhode Island by Darlyne Murawski Design Pics
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Raspberry flowers and buds; Brewster Cape Cod Massachusetts by Darlyne Murawski Design Pics
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Two tandem pairs of Japanese beetles on a plant stem; Concord Great Meadows National Wildlife Massachusetts by Darlyne Murawski Design Pics
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Tiny flowers of a Queen Annes Lace starting to open; Arlington McClennen Park Massachusetts by Darlyne Murawski Design Pics
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Closeup of flowering grass with yellow stamens and feathery stigmas visible; Arlington McClennen Park Massachusetts by Darlyne Murawski Design
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Immature seed pod of an American water lotus Nelumbo lutea; Concord Great Meadows National Wildlife Massachusetts by Darlyne Murawski Design
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Closeup of a stalk of Fountain grass Pennisetum species with seeds; Arlington Arlington Reservoir Massachusetts by Darlyne Murawski Design P
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A newly-emerged skimmer dragonfly hanging on its nymphal skin; Estabrook Woods Concord Massachusetts by Darlyne Murawski Design Pics
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Close up of an adult skimmer dragonfly emerging from its nymphal skin; Estabrook Woods Concord Massachusetts by Darlyne Murawski Design Pics
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Close up of fullmoon maple leaves Acer japonicum in springtime; Tower Hill Botanic Garden Boylston Massachusetts by Darlyne Murawski Design P
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Freshly unfurled hosta leaves Hosta species; Tower Hill Botanic Garden Boylston Massachusetts by Darlyne Murawski Design Pics
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Close up of a dandelion Taraxacum species with seeds dispersing; Arlington Massachusetts by Darlyne Murawski Design Pics
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Close up of a dandelion Taraxacum species with seeds dispersing; Arlington Massachusetts by Darlyne Murawski Design Pics
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Spore-bearing branches of the cinnamon fern Osmundastrum cinnamomeum; Arlington Massachusetts by Darlyne Murawski Design Pics
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A large burl on the side of a white oak tree trunk Quercus alba; Cambridge Massachusetts by Darlyne Murawski Design Pics
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Close up of pink flowers and buds of an ornamental tree; Lexington Massachusetts by Darlyne Murawski Design Pics
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Canopy of a giant dioon cycad Dioon Spinulosum with giant male cones; Wellesley Massachusetts by Darlyne Murawski Design Pics
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Close up of a yellow lily flower and bud; Lexington Massachusetts by Darlyne Murawski Design Pics
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Close up of rose of Sharon buds opening up; Lexington Massachusetts by Darlyne Murawski Design Pics
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Immature cinnamon fern spore clusters sporangia up close; Framingham Massachusetts by Darlyne Murawski Design Pics
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Calvin cycle illustration
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Calvin cycle illustration
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Calvin cycle illustration
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