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spiders possess an exoskeleton composed of chitin molecule made up of bound units of acetylglucosamine
thoracic region from an anterior view of a female velvet ant dasymutilla sp
head region from an anterior view of a female velvet ant dasymutilla sp
family mutillidae and the order hymenoptera the velvet ant is not really an ant at all but a wasp
ultrastructural details displayed along the exterior of the segmented length of an unidentified dragonflys antenna
morphologic details found associated with the wing attachment of an unidentified dragonfly
under a moderate magnification of 201x dorsal view of an unidentified engorged female tick
magnification of 52x depicted a dorsal view of an unidentified engorged female tick
dorsal view of an unidentified male dermacentor sp tick found upon a cat in the suburbs
depicted a dorsal view of an unidentified engorged female tick which had been extracted from the skin
morphologic features located at the distal end of an unidentified 1 4 sized black flying insect
man taking his temperature with an oral thermometer while participating in influenza vintage photo
man taking his temperature with an oral thermometer while participating in an influenza swine flu vaccine test
influenza testing laboratory showed a laboratorian entering data into an influenza specific database
