Final answer:
Sheet Web Spider webs are recognized by their seemingly messy appearance with vertical knock-down strands and a cone in the middle, unlike the complex, symmetrical webs of Orb Weaver Spiders. Spiders use these webs for catching prey and display different web designs based on their species.
Step-by-step explanation:
You can tell an Orb Weaver Spider web from a Sheet Web Spider web because Sheet Web Spider webs look "messy" with vertical knock-down strands and a cone in the middle of the web under which the spider sits while Orb Weaver webs are beautiful vertical structures with complex strand patterns. Spiders spin webs to catch their prey, which is a behavioral adaptation for survival. Sheet Web Spiders create a distinctive web design that includes a domed or flat structure, often appearing haphazard compared to the highly organized and symmetrical webs of the Orb Weaver Spiders. Additionally, spiders are not insects; they belong to the arachnid family and have eight legs and various sensory organs, including four pairs of eyes that can form images and detect light, enhancing their predatory skills.