Final answer:
The false statement about spiders is that Crab Spiders make messy webs with knock-down strands. In reality, crab spiders do not build webs at all; they are ambush predators. Spiders use silk for various purposes and play a vital role in controlling insect populations in ecosystems.
Step-by-step explanation:
Which Statement About Spiders is Not True?
The statement "Crab Spiders make messy webs with knock-down strands" is not true. Crab spiders do not create webs to catch their prey; instead, they are ambush predators that rely on camouflage and patience to capture insects that wander too close.
Spiders spin webs to trap their prey, using their silk for various purposes such as climbing, forming egg sacs, and wrapping prey. They are distinct from insects in that they have eight legs and are classified as arachnids. Many spiders have the ability to recycle their silk by consuming it, enabling them to rebuild their webs with freshly produced silk.
Additionally, spiders are essential in ecosystems as they help control insect populations. They possess specialized organs like chelicerae and pedipalps for feeding and defense, as well as unique adaptations such as internal breathing systems.
The statement that is NOT TRUE concerning spiders is option c. Crab spiders do not make messy webs with knock-down strands. In fact, Crab spiders do not build webs at all. They are ambush predators and do not use webs to catch prey. Instead, they rely on their ability to change color and blend in with their surroundings to capture their prey.