Insect eggshells.
D000818:Animals; D002245:Carbon Dioxide / Q000378:metabolism; D005260:Female; D007313:Insecta / Q000033:anatomy & histology*; D008855:Microscopy, Electron, Scanning; D010063:Ovum / Q000166:cytology*; D010100:Oxygen / Q000378:metabolism
D002245:Carbon Dioxide; D010100:Oxygen