What are the appendages of a spider?
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What are the appendages of a spider?
They are characterized by having two body regions, a cephalothorax and an abdomen. They also have 6 pairs of appendages: 4 pairs of legs and 2 pairs of mouthpart appendages, the first are called chelicerae (hence, the subphylum Chelicerata).
How many appendages do spiders have?
six pairs
Structure and Function. Spiders are usually thought of as 8-legged organisms. It is true that they have four pairs of appendages modified to function as walking legs, but in all they have six pairs of appendages.
Do spiders have specialized appendages?
Arachnids have four pairs of legs, specialized appendages, and a fused head and thorax. Arachnids include spiders, daddy-long-legs, scorpions, and ticks.
Are spiders appendages jointed?
The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.
What are the appendages of the mouthparts of the spiders and their functions?
Spider Mouthparts Spiders lack mandibles for chewing. They make up for that with their chelicerae — jaws with sharp edges, their mouthparts. The appendages are reminiscent of fangs. Spiders employ their chelicerae to seize and immobilize their prey targets.
Is a leg an appendage?
Use the noun appendage to describe something that’s attached to something larger. Your arm is an appendage to your body. Appendage often describes body parts, either on humans or animals. If it’s something that sticks out — like a finger, tail, or leg — chances are it can be called an appendage.
What kind of spider has 7 legs?
Pholcidae
| Pholcidae Temporal range: | |
|---|---|
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Pholcidae C. L. Koch, 1850 |
How does spider excrete?
Answer:spiders have structures designed to get rid of nitrogenous waste. These are called malpighian tubules and function in a manner similar to our own kidneys. Spiders don’t produce urine like we do, but produce uric acid, which doesn’t dissolve in water and is a near-solid.
What are jointed appendages?
A jointed appendage can be defined as the growth from the body of organism having joints in it. Jointed appendages is common charateristic of arthropoda. Jointed appendages in arthropodes may include legs, wings and mouth parts.
What are the appendages chelicerae for?
The first pair, the chelicerae, often have claws or fangs. They are used to capture prey (spiders), transport a spermatophore (sunspiders, some mites and ticks), produce sounds (sunspiders, some spiders), cut strands of silk (web-dwelling spiders), and produce silk (pseudoscorpions).