Colon
Steve Gschmeissner/science Photo Library
Bone Marrow Cancer
Cnri/science Photo Library
Chromosomes #2
Maurizio De Angelis/science Photo Library
Urinary Bladder Epithelium
Jose Calvo / Science Photo Library
Stomach Wall
Dr Keith Wheeler/science Photo Library
Basal Cell Carcinoma #6
Jose Calvo/science Photo Library
Rose (rosa 'evelyn Aussaucer') #1
Neil Joy/science Photo Library
Prophet Muhammed In Paradise Gardens
Collection Abecasis/science Photo Library
Lyme Disease Tick
Alfred Pasieka/science Photo Library
Astrocytes #4
Jose Calvo / Science Photo Library
Campylobacter Jejuni Bacterium
A. Dowsett, Health Protection Agency/science Photo Library
Human Coronavirus
Ami Images/science Photo Library
Human Heart Muscle
Astrid & Hanns-frieder Michler/science Photo Library
Citrobacter Bacteria #1
Kateryna Kon/science Photo Library
Hydrangea Macrophylla 'berliner Spree'
Bildagentur-online/mcphoto-muller/science Photo Library
Urinary Bladder
Jose Calvo / Science Photo Library
Dvd Discs Covered In Droplets Of Water
Maria Mosolova/science Photo Library
Petunia X Hybrida 'strawberry Sundae'
Brian Gadsby/science Photo Library
Plm Of Strips Of Cellophane #1
Dr Jeremy Burgess
Moth Orchid (phalaenopsis Sp.)
Dr Keith Wheeler/science Photo Library
African Daisies (osteospermum Sp.)
Dr Keith Wheeler/science Photo Library
Food Thermometer
Martyn F. Chillmaid/science Photo Library
Rhododendron Flowers
Dr Keith Wheeler/science Photo Library
Interference Pattern Of Oil On Water #1
Dr Keith Wheeler/science Photo Library
Pine Needle
Dr Keith Wheeler/science Photo Library
Tapeworm Proglottid
Dr Keith Wheeler/science Photo Library
Ovary Tissue
Dr Keith Wheeler/science Photo Library
Algal Colony
Dr Keith Wheeler/science Photo Library
Pine Stem #6
Dr Keith Wheeler/science Photo Library
Black Pepper Stem
Dr Keith Wheeler/science Photo Library
Frog Bladder Tissue
Dr Keith Wheeler/science Photo Library
Honesty (lunaria Annua)
Dr Keith Wheeler/science Photo Library
Human Tongue
Dr Keith Wheeler/science Photo Library
Kidney #12
Dr Keith Wheeler/science Photo Library
Skeletal Muscle Tissue
Microscape
Flower Petals
Ian Hooton/science Photo Library
Proximal Convoluted Tubules
Jose Calvo / Science Photo Library
Pig Allergy Testing
Scott Bauer/us Department Of Agriculture/science Photo Library
Mycoplasma Pneumoniae Bacteria
Dr Kari Lounatmaa/science Photo Library
Drug Cocktail
Aj Photo/science Photo Library
Viral Encephalitis
Pr. R. Abelanet - Cnri/science Photo Library
Ecstasy Pills
Science Photo Library
Grape Hyacinth (muscari Sp.)
Ian Hooton/science Photo Library
Rose (rosa Sp.) #1
Maria Mosolova/science Photo Library
Measles Virus
Cdc/science Photo Library
Cross-section Of The Human Cornea
Science Stock Photography/science Photo Library
Fractured Tendon
Steve Gschmeissner/science Photo Library
Bacterial Colonies
Steve Gschmeissner/science Photo Library
Bumble Bee Feeding
Mauro Fermariello/science Photo Library
Eroded Sandstone Pinnacles
Sinclair Stammers/science Photo Library
Rose (rosa Sp.) #2
Maria Mosolova/science Photo Library
Face Of A Young Girl
Lea Paterson/science Photo Library
Drinking Water
Alex Bartel/science Photo Library
Thyroid Follicles
Jose Calvo / Science Photo Library
Teenage Twin Sisters #2
Ian Hooton/science Photo Library
Human Skull
Paul Brown/science Photo Library
Tulip Flower
Maria Mosolova/science Photo Library
Sulphur Crystals
Alfred Pasieka/science Photo Library
Crabapple Blossom (malus Coronaria)
Maria Mosolova/science Photo Library
Rose (rosa 'frederic Mistral')
Maria Mosolova/science Photo Library
Section Through A Human Tongue.
John Burbidge/science Photo Library
Skin Lesion #1
Cnri/science Photo Library
Spoon-feeding #1
Aj Photo/science Photo Library
Tampons
Cristina Pedrazzini/science Photo Library
Vaginal Cancer
Cnri/science Photo Library
E. Coli Bacteria #2
Steve Gschmeissner/science Photo Library
Kidney Glomerulus
Jose Calvo / Science Photo Library
Naegleria Fowleri Amoeba Infection
Cdc/science Photo Library
Drinking Beer
Alex Bartel/science Photo Library
Olive Ridley Turtle Hatchling On A Hand
Louise Murray/science Photo Library
Cistus X Argenteus 'silver Pink' Flower
Geoff Kidd/science Photo Library
Close-up Of Crab Spider In Peony Flower
Dr Jeremy Burgess/science Photo Library