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ID#:10052
Description:Under a low magnification of 58X this scanning electron microscopic (SEM) image depicted some of the exoskeletal morphologic characteristics displayed on the head region of an unidentified beetle found deceased in the suburbs of Decatur, Georgia. In this particular view, were protuberances emanating from one of the insect's mandibles.
As a member of the Class Insecta, and Phylum Arthropoda, this beetle was supported by its jointed exoskeleton, from which its Phylum, Arthro = jointed, and poda = legs, devired its name.

As arthropods, beetles possess an exoskeleton composed of chitin, which is a molecule made up of bound units of acetylglucosamine, joined in such a way as to allow for increased points at which hydrogen bonding can occur. In this way chitin provides increased strength, and durability as an exoskeletal foundation.

What appears to be hairs are actually sensorial organs known as “setae”, which provide the organism with information about its environment including changes in temperature, wind direction, and chemical queues, i.e., pheromones.

High Resolution: Click here for hi-resolution image (5.49 MB)
Content Providers(s):CDC/ Janice Haney Carr
Creation Date:2006
Photo Credit:Janice Haney Carr
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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