copied answer:
What are spider appendages says:
Spiders have spinnerets near the rear end of their bodies. They use these spinnerets to spin out their silk. They have eight legs, and each leg is terminated (depending on the species) by either three claws or two claws. Between the front two legs are two more, shorter, appendages called "pedipalps." These appendages are shorter than legs and are used for manipulating things such as their prey, things they want to eliminate from their webs and living areas, and (in males) they are terminated by a kind of biological syringe that they load up with semen and then inject into the sexual organ of the female during mating. Finally, there are the two chelicerae have a basal part that you can see when you look a resting spider directly in the face, and each of them has a fang that has its point held near the mouth of the spider and that folds into the chelicera like the blade of a jackknife folds into its handle.
Unlike insects, spiders do not have antennae. They do not have wings. They do not have three body parts either, just the abdomen and the "cephalothorax" (head plus chest) where the legs, pedipalps, chelicerae, eyes, etc. are located.
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Arthropods are invertebrates with jointed appendages. They include insects, spiders, crustaceans (like crabs and shrimp), and centipedes. Their segmented bodies with exoskeletons provide support for their appendages.
Spiders are in the phylum arthropoda, but they are in there own subphylum called Chelicerata, because they are quite different from other arthropods. The name chelicerata comes from a unique pair of appendages called chelicera.
appendages are how many body parts do they have
Chelicerata is a subphylum of the phylum Arthropoda. It contains organisms like spiders, ticks, and scorpions. Organisms in Subphylum Chelicerata have a cephalothorax and a posterior abdomen. They have six pairs of appendages on their cephalothorax: Chelicerae, pedipalps, and four walking legs. Chelicerae are pinchers that crush food, and pedipalps are appendages that control food. They do not have mandibles, which are jaws, and they don't have antennae, so organisms in Subphylum Chelicerata technically aren't insects.
Bugs, such as insects and spiders, have different types of feet depending on their species. For insects, their feet are called "tarsi" or "tarsal segments." Spiders have specialized structures called "tarsus" or "claws" at the end of their legs that help them grip surfaces.
pedipalps
Arthropods are invertebrates with jointed appendages. They include insects, spiders, crustaceans (like crabs and shrimp), and centipedes. Their segmented bodies with exoskeletons provide support for their appendages.
Two pedipalps (which function more or less like arms) and behind them Eight legs And some spinnerets (that give silk sort of the way a cow's teats give milk) Spiders also have chelicerae, which are two short things that are tipped with fangs. Spiders do not have antennae.
The kind of spiders that wear water hats are water spiders.
A pedipalp is basically the appendages that you see on spiders (that look like antennae) or scorpions (that look like pincers) or almost any other anthropod.each of the second pair of appendages attached to the cephalothorax of most arachnids. They are variously specialized as pincers in scorpions, sensory organs in spiders, and locomotory organs in horseshoe crabs.
Spiders are in the phylum arthropoda, but they are in there own subphylum called Chelicerata, because they are quite different from other arthropods. The name chelicerata comes from a unique pair of appendages called chelicera.
trapdoor spiders
orb spiders
Actually, no animal on the planet has joined limbs unless they are deformed.
aracnids
the anchient spiders and the browns recluse.
An arthropod is an invertebrate animal with an external skeleton, a segmented body, and jointed appendages. Common examples include insects, spiders, and crustaceans.