Animal with a Segmented Body: Spider (Araneae)

The web that will become the graveyard of many unsuspecting insects, pictured above, is the product of the segmented Spider. Segmentation is the subdivision of the body along an organism’s length into recurring segments. The Spider has a segmented body. The Arachnid is segmented into three parts: a head, a thorax and an abdomen. The head is the region of the Spider that contains  eyes and mouthparts that are adapted to fit the need of the arachnid. The evolution of the segmented body is believed to be an adaptation producing movement, resulting in mobility and flexibility for an organism. With increased movement and range of motion, an organism has a greater chance of survival.


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