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Image #   29819E
Name:   Chicken eggshell surface
Copyright:   Copyright 2009 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Chicken eggshell surface. Shown here are the surface mineral crystals that form many tiny pores in the bird eggshell. Eggshells are the outer covering of hard-shelled eggs and of other eggs with soft outer coats. Eggshell structure varies widely among species. Birds and some reptiles produce hard-shelled eggs. Bird eggshells are composed of a protein matrix lined with mineral crystals, usually calcium carbonate (CaCO3). Most of the eggshell is composed of calcium carbonate crystals (approximately 95%). As the chick develops changes in the eggshell allow the passage of carbon dioxide and oxygen and the release of water vapor by way of the eggshell membranes.
Magnification*: x4,000
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   08.01.09 chicken egg chicken egg shell chicken egg shell surface egg shell egg shell surface eggshell misc. vertebrate misc. vertebrates vertebrate vertebrates chicken eggshell chicken eggshell surface eggshell surface egg shell pore egg shell pores eggshell pore eggshell pores calcium carbonate crystal egg shell crystal eggshell crystal lattice CaCO3 calcium carbon dioxide carbon dioxide exhange oxygen oxygen exchange calcium carbonate compound calcium carbonate mineral calcium mineral calcium minerals mineral mineral crystal mineral crystals SEM calcium carbonate crystal calcium carbonate crystals hard shelled egg hard shelled eggs hard-shelled egg hard-shelled eggs calcified calcified egg calcified egg shell calcified eggs calcified egg shells calcified eggshell calcified eggshells bird egg bird egg shell bird egg shells bird eggs bird eggshell bird eggshells chicken hen egg food foods foodstuff foodstuffs 29819E

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