http://purl.org/obo/owlapi/tribolium.anatomy#TrOn_0000086

Properties

label
[] egg_shell
creation_date
[] 2011-07-21T01:20:33Z
subset
[] concrete
subset
[] mixed
created_by
[] dgrossm
def
[] "The chorion, or eggshell, is commonly pierced by respiratory openings that lead to an air-filled meshwork inside the shell. Many insect eggs are able to avoid mechanical injury and desiccation because they are protected by an egg-shell or chorion which is tough, rigid and relatively waterproof. These properties tend to make it impermeable to gases, and since the egg contains a living embryo, there must be provision for the diffusion of an adequate volume of oxygen into the egg. Specialized respiratory structures have been described and a respiratory function has sometimes been described to the system of micropylar canals that penetrate the shell in hard-shell eggs." [http://jeb.biologists.org/content/26/4/327.full.pdf, ISBN:978-3-11-014898-5]

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part_of
TrOn_0000686