What specialized organ unites members of the Order Araneae, including *Dysdera*?
Answer
Spinnerets used for producing silk.
The Order Araneae is specifically designated for true spiders, and the unifying characteristic that places a creature here is the capacity for silk production. This capability is managed by specialized organs called spinnerets, located usually at the rear of the abdomen. While the application of the silk varies significantly—some build massive aerial nets, others use it for ground-level activities—the inherent ability to spin silk remains the fundamental trait that defines membership in this order, distinguishing them from other arachnids like mites or ticks that lack this function.
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