What are the features of arachnid?

Answer 1

The features of an arachnid are its eight legs.

Arachnids are a class (Arachnida) of joint-legged invertebrate animals in the sub-phylum Chelicerata. All arachnids have eight legs, but some exceptions are of some species having the first pair legs convert to sensory function and harvest mite larvae have only 3 pairs of legs.

It is commonly understood that arachnids have four pairs of legs, and that arachnids may be easily distinguished from insects by this fact (insects have six legs or three pairs). Arachnids generally have a total of 6 pairs of appendages - two pairs of which have become adapted for feeding, defense, and sensory perception. The first pair of appendages, the chelicerae, serve in feeding and defense. The next pair of appendages, the pedipalps have been adapted for feeding, locomotion, and/or reproductive functions. In Solifugae , the palpi are quite leg-like and make Solifugae appear to have ten legs. The larvae of mites (and Ricinulei) have only six legs; the fourth pair appears when they moult into nymphs. However, there are also adult mites with six, or even four legs

If furthur information is needed please go to the soucre: http://en.wikipedia.org/wiki/Arachnids

Answer 2

Arachnids range in size from tiny mites that measure 0.08 mm (0.003 inch) to the enormous scorpion hadogenes troglodytes of Africa, which may be 21 cm (8 inches) or more in length. In appearance, they vary from short-legged, round-bodied mites and pincer-equipped scorpions with curled tails to delicate, long-legged daddy longlegs and robust, hairy tarantulas.