Human Ear
K H Fung/science Photo Library
Adrenal Gland Cortex
Jose Calvo / Science Photo Library
Frog Thigh
Dr Keith Wheeler/science Photo Library
Squamous Cell Carcinoma Of The Larynx #3
Jose Calvo / Science Photo Library
Food Thermometer
Martyn F. Chillmaid/science Photo Library
Bee Proboscis
Dr Keith Wheeler/science Photo Library
Big Ben
Tony Mcconnell/science Photo Library
Fern Spore Capsule
Dr Keith Wheeler/science Photo Library
Calbrachoa Noa Blue Legend
Dr Keith Wheeler/science Photo Library
Maize Stem #2
Dr Keith Wheeler/science Photo Library
Lewisia Cotyledon 'rose Gem'
Dr Keith Wheeler/science Photo Library
Pine Stem #12
Dr Keith Wheeler/science Photo Library
Human Skin
Dr Keith Wheeler/science Photo Library
Black Pepper Stem
Dr Keith Wheeler/science Photo Library
Graafian Follicle #2
Dr Keith Wheeler/science Photo Library
Dahlia Tuber #1
Dr Keith Wheeler/science Photo Library
Phlox Subulata 'marjorie'
Dr Keith Wheeler/science Photo Library
Ascomycete Spores
Dr Keith Wheeler/science Photo Library
Spirogyra Algae
Dr Keith Wheeler/science Photo Library
Skeletal Muscle Tissue
Microscape
Cancer Cells
Sebastian Kaulitzki/science Photo Library
Morning-after Pill
Mark Thomas/science Photo Library
Chromosomes
Pixologicstudio/science Photo Library
Grape Hyacinth (muscari Sp.)
Ian Hooton/science Photo Library
Flower
Maria Mosolova/science Photo Library
Poppy Anemone (anemone Coronaria)
Maria Mosolova/science Photo Library
Heart Muscle Cells
Jose Calvo / Science Photo Library
Small Intestine Villi
R. Bick, B. Poindexter, Ut Medical School/science Photo Library
Kidney Glomerulus
Jose Calvo / Science Photo Library
Naegleria Fowleri Amoeba Infection
Cdc/science Photo Library
Smooth Muscle
Microscape/science Photo Library
Coloured Sem Of Uterus Lining (receptive Stage)
Dr Yorgos Nikas/science Photo Library
Plm Of Trilobal And Square Carpet Fibres
R.e. Litchfield/science Photo Library
Skeletal Muscle Fibres
Biophoto Associates/science Photo Library
View Of Rows Of Chicken Eggs
Martin Bond/science Photo Library
Orchid (phalaenopsis 'pink Twilight')
Anthony Cooper/science Photo Library
Tape Measure
Tony Craddock/science Photo Library
Cogs
Tony Craddock/science Photo Library
E. Coli Bacteria #1
Pixologicstudio/science Photo Library
Adult Adrenal Gland
Jose Calvo / Science Photo Library
Lumbar Vertebrae #2
Pixologicstudio/science Photo Library
Clematis 'polish Spirit'
Neil Joy/science Photo Library
Biochemical Research #3
Tek Image/science Photo Library
Breast Cancer #1
K H Fung/science Photo Library
Thyroid Gland Adenoma
Jose Calvo / Science Photo Library
Rose (rosa Sp.) #13
Maria Mosolova/science Photo Library
Child Development
Julie Nicholls/science Photo Library
Fireweed (epilobium Angustifolium) #1
Bruno Petriglia/science Photo Library
Angelonia Flower
Geoff Kidd/science Photo Library
Pansies (viola X Wittrockiana) #3
Maria Mosolova/science Photo Library
Aorta
Jose Calvo / Science Photo Library
Drug Capsules #1
Victor Habbick Visions/science Photo Library
Daily Pill Container
Steve Horrell/science Photo Library
Thermogram Of Head In Profile
Peter Menzel/science Photo Library
Bacteria #5
Pixologicstudio/science Photo Library
Structure Of Wood Near A Knot
Astrid & Hanns-frieder Michler/science Photo Library
Aorta #1
Jose Calvo / Science Photo Library
Heart Muscle Cells #1
Jose Calvo / Science Photo Library
Ligament
Microscape/science Photo Library
Breast Cancer #2
K H Fung/science Photo Library
Leaf Protoplasts Containing Chloroplasts
Sinclair Stammers/science Photo Library.
Tem Of Aids Virus #1
London School Of Hygiene & Tropical Medicine/science Photo Library.
Small Intestine Tissue
John Griffin, University Of Queensland/science Photo Library
Poppy Anemone (anemone Coronaria) #5
Maria Mosolova/science Photo Library
Rose (rosa 'storm Cloud') In Flower
Ian Gowland/science Photo Library
Wall Of A Large Vein
Jose Calvo / Science Photo Library
Cancer Cell #1
Sciepro/science Photo Library
Tem Of Papilloma Viruses
Cnri/science Photo Library
Chromosome #3
Tim Vernon / Science Photo Library
Indoor Azalea (rhododendron Simsii)
Thomas Hagen/science Photo Library
Flamingo Flowers
Ian Hooton/science Photo Library
Water Droplets
Ton Kinsbergen/science Photo Library