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Squill (Scilla sp.) stomata, light micrograph
12396125 - Squill (Scilla sp.) stomata, light micrograph
Alveolar cell,TEM
12050121 - Alveolar cell,TEM
Normal and emphysemic alveoli
11959310 - Normal and emphysemic alveoli
Healthy Lung vs. Cancerous Lung
13495291 - Healthy Lung vs. Cancerous Lung
Plant leaf structure, illustration
13437535 - Plant leaf structure, illustration
Lung alveoli, fluorescence micrograph
12450604 - Lung alveoli, fluorescence micrograph
Squill (Scilla sp.) stomata, light micrograph
12450456 - Squill (Scilla sp.) stomata, light micrograph
Plant stomata, LM
12394295 - Plant stomata, LM
Meristem differentiating into an epidermal cell., SEM
12301734 - Meristem differentiating into an epidermal cell., SEM
Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
12301593 - Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
Leaf stomata (Arabidopsis sp.), SEM
12301556 - Leaf stomata (Arabidopsis sp.), SEM
Forsythia stomata,light micrograph
11721848 - Forsythia stomata,light micrograph
Lung tissue,SEM
11678224 - Lung tissue,SEM
Lung alveoli,fluorescence micrograph
11675588 - Lung alveoli,fluorescence micrograph
Alveoli, illustration
13171115 - Alveoli, illustration
Iris (Iris germanica) stomata, light micrograph
12450490 - Iris (Iris germanica) stomata, light micrograph
Prickly pear cactus (Opuntia spp.) stomata, SEM
12378174 - Prickly pear cactus (Opuntia spp.) stomata, SEM
Broccoli differentiating apical meristem, SEM
12301729 - Broccoli differentiating apical meristem, SEM
Alveoli, illustration
12504633 - Alveoli, illustration
Lung alveoli and red blood cells, TEM
12491958 - Lung alveoli and red blood cells, TEM
Meristem differentiating into an epidermal cell., SEM
12378193 - Meristem differentiating into an epidermal cell., SEM
Prickly pear cactus (Opuntia spp.) stoma, SEM
12301618 - Prickly pear cactus (Opuntia spp.) stoma, SEM
Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
12301595 - Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
Grape hyacinth stomata,light micrograph
11721892 - Grape hyacinth stomata,light micrograph
Alveoli in the lung,illustration
11720430 - Alveoli in the lung,illustration
Iris stomata,light micrograph
11712866 - Iris stomata,light micrograph
Illustration of bronchial epithelium
11699412 - Illustration of bronchial epithelium
Bronchiole Closed with Mucus, 3 of 3
13495261 - Bronchiole Closed with Mucus, 3 of 3
Idiopathic Pulmonary Fibrosis, illustration
12641868 - Idiopathic Pulmonary Fibrosis, illustration
Lily (Lilium sp.) stomata, light micrograph
12450495 - Lily (Lilium sp.) stomata, light micrograph
Squill (Scilla sp.) stomata, light micrograph
12450452 - Squill (Scilla sp.) stomata, light micrograph
Cellular respiration,plants and animals
12099172 - Cellular respiration,plants and animals
Hosta stomata,light micrograph
11721849 - Hosta stomata,light micrograph
CAM daytime photosynthesis,illustration
11703732 - CAM daytime photosynthesis,illustration
Alveoli,artwork
11702177 - Alveoli,artwork
Leaf epidermis, light micrograph
13446307 - Leaf epidermis, light micrograph
Wheat leaf trichome,SEM
11692710 - Wheat leaf trichome,SEM
Alveoli, illustration
13171118 - Alveoli, illustration
Prickly pear cactus (Opuntia spp.) stomata, SEM
12301615 - Prickly pear cactus (Opuntia spp.) stomata, SEM
Lily of the valley stomata,micrograph
11721863 - Lily of the valley stomata,micrograph
Smoke Bush Stoma (Cotinus coggygria)
11688396 - Smoke Bush Stoma (Cotinus coggygria)
Lung tissue,SEM
11678225 - Lung tissue,SEM
Mackerel gills,light micrograph
11675943 - Mackerel gills,light micrograph
Lung bronchioles and alveoli, illustration
12954313 - Lung bronchioles and alveoli, illustration
Grape hyacinth (Muscari sp.) stomata, light micrograph
12396127 - Grape hyacinth (Muscari sp.) stomata, light micrograph
Prickly pear cactus (Opuntia spp.) stomata, SEM
12301613 - Prickly pear cactus (Opuntia spp.) stomata, SEM
Peony stomata,light micrograph
11721880 - Peony stomata,light micrograph
Flax leaf stomata,SEM
11692561 - Flax leaf stomata,SEM
Flax leaf stomata,SEM
11692560 - Flax leaf stomata,SEM
Lilac Leaf Stomata (Syringa vulgaris)
11688393 - Lilac Leaf Stomata (Syringa vulgaris)
Alveoli, illustration
13171119 - Alveoli, illustration
Alveoli, illustration
12955045 - Alveoli, illustration
Stomata of scouring rush (Equisetum sp.), SEM
12378142 - Stomata of scouring rush (Equisetum sp.), SEM
Alveolar cell,TEM
12050124 - Alveolar cell,TEM
Hop leaf stomata,SEM
11692603 - Hop leaf stomata,SEM
Grass trichome and stomata,SEM
11692572 - Grass trichome and stomata,SEM
Flax leaf stomata,SEM
11692559 - Flax leaf stomata,SEM
Broccoli differentiating apical meristem, SEM
12301731 - Broccoli differentiating apical meristem, SEM
Prickly pear cactus (Opuntia spp.) stoma, SEM
12301617 - Prickly pear cactus (Opuntia spp.) stoma, SEM
Prickly pear cactus (Opuntia spp.) stoma, SEM
12301611 - Prickly pear cactus (Opuntia spp.) stoma, SEM
Leaf stomata (Arabidopsis sp.), SEM
12301558 - Leaf stomata (Arabidopsis sp.), SEM
Grape hyacinth stomata,light micrograph
11712874 - Grape hyacinth stomata,light micrograph
CAM photosynthesis at night,illustration
11703729 - CAM photosynthesis at night,illustration
Flax leaf stoma,SEM
11692562 - Flax leaf stoma,SEM
Lung bronchiole,fluorescence micrograph
11675590 - Lung bronchiole,fluorescence micrograph
Meristem differentiating into an epidermal cell., SEM
12301732 - Meristem differentiating into an epidermal cell., SEM
Alveolar cell,TEM
12050115 - Alveolar cell,TEM
Scots pine (Pinus sylvestris) stem
11712631 - Scots pine (Pinus sylvestris) stem
Cross section of a leaf, light micrograph
13446311 - Cross section of a leaf, light micrograph
Stoma of a broad bean leaf (Vicia faba), SEM
12301510 - Stoma of a broad bean leaf (Vicia faba), SEM
Alveolar cell,TEM
12050117 - Alveolar cell,TEM
Tulip stomata,light micrograph
11714624 - Tulip stomata,light micrograph
Stoma of a broad bean leaf (Vicia faba), SEM
12378146 - Stoma of a broad bean leaf (Vicia faba), SEM
Meristem differentiating into an epidermal cell., SEM
12301735 - Meristem differentiating into an epidermal cell., SEM
Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
12301594 - Leaf stomata (Ohia Lehua tree; Metrosideros polymorpha), SEM
Alveoli in emphysema,illustration
11959311 - Alveoli in emphysema,illustration
Tulip stomata,light micrograph
11721890 - Tulip stomata,light micrograph
Iris stomata,light micrograph
11721866 - Iris stomata,light micrograph
Alveoli, illustration
13171117 - Alveoli, illustration
Broccoli differentiating apical meristem, SEM
12378192 - Broccoli differentiating apical meristem, SEM
Plant leaf trichome (Hibiscus sp.), SEM
12301581 - Plant leaf trichome (Hibiscus sp.), SEM
Alveolar cell,TEM
12050120 - Alveolar cell,TEM
Iris stomata,light micrograph
11721838 - Iris stomata,light micrograph
Iris stomata,light micrograph
11721837 - Iris stomata,light micrograph
Oxygenation of the blood,illustration
11713402 - Oxygenation of the blood,illustration
Iris stomata,light micrograph
11712865 - Iris stomata,light micrograph
Alveoli,artwork
11702175 - Alveoli,artwork
Pulmonary vein and artery,SEM
11701708 - Pulmonary vein and artery,SEM
Prickly pear cactus (Opuntia spp.) stoma, SEM
12378173 - Prickly pear cactus (Opuntia spp.) stoma, SEM
Agricultural gas exchange research
12375306 - Agricultural gas exchange research
Broccoli differentiating apical meristem, SEM
12301730 - Broccoli differentiating apical meristem, SEM
Broccoli differentiating apical meristem, SEM
12301727 - Broccoli differentiating apical meristem, SEM
Normal and emphysemic alveoli
11959326 - Normal and emphysemic alveoli
Lily of the valley stomata,micrograph
11721864 - Lily of the valley stomata,micrograph
Tulip stomata,light micrograph
11712873 - Tulip stomata,light micrograph
Lilac Trichome & Stoma (Syringa vulgaris)
11688399 - Lilac Trichome & Stoma (Syringa vulgaris)
Cave fish gill,SEM
11685508 - Cave fish gill,SEM
Arum leaf surface,light micrograph
11675212 - Arum leaf surface,light micrograph
Alveolar Sacs, artwork
12276759 - Alveolar Sacs, artwork
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