(20marks)give an insect that live in tropical desert

圖片參考：http://www.cincyzoo.org/Exhibits/AnimalExhibits/WorldOfTheInsect/giantdesertcentipede/centipede1.jpg


圖片參考：http://www.bugsinthenews.com/07092002_04_070730pm_wa_body.jpg


Giant Desert Centipede
Scolopendra heros
This amazing arthropod hides during the hot day and emerges at night to hunt. It is quick and agile. Its fore legs are stout, powerfully muscled and have claws modified for injecting venom. These help subdue prey or defend against larger predators. Though 'centipede' means 100 legs, it actually has only about 40 legs.
Ecological Role: Predator
Habitat: Desert and arid scrubland
Range: Southwest United States
Adult Lifespan: 5 yrs
Prey: Insects and tiny rodents

圖片參考：http://www.cincyzoo.org/Exhibits/AnimalExhibits/WorldOfTheInsect/giantdesertcentipede/centipederange.jpg

The first thing the centipede did after being placed in the terrarium was explore every square inch of the enclosure. At the lower levels only, though. This centipede is unable to negotiate smooth vertical glass, which is a blessing. The top of the enclosure can generally be left ajar while caring for its other inhabitants without worrying that the centipede will slip out unnoticed. Sometimes, though, this guy climbs to the top of the driftwood stump in the enclosure, and is able to reach the screen-covered lid, which it may explore for hours.
This centipede moves very fast. You might think that a creature with more than 40 legs would be clumsy. But they don't hold this centipede down. It zips around the enclosure at a rapid pace.
The centipede's body is divided into 21 flat segments. Three of these are colored a caramel brown and are right behind the head. The other eighteen segments are black. The legs on the trunk, the antennae on the head, and the tips of the legs on the last segment of the body are colored a medium dark yellow. Notice that each leg is tipped with a sharp claw.
Centipedes are common in central Texas, where they prefer to live outdoors in damp places, under leaves and stones. They are members of the phylum Arthropoda (they have articulating, jointed legs) and the class Chilopoda (from the Greek, cheilos, meaning "lip" and pous, meaning "foot"). Their jaws, which are connected to venom glands, are used to kill prey. If handled, they are capable of injecting venom into humans, so caution is advised.
If you are pestered by centipedes, inside or outside your home, it is always wise to seek professional help in determining why they are there. A knowledgeable pest management specialist will also know the best methods available to eliminate them from your home and yard. Those methods must include identifying and correcting conditions conducive to the breeding and congregation of these organisms.
The giant desert centipede, Scolopendra heros Gir., is found throughout the southern U.S., particularly in desert regions, and is described in the literature as reaching a maximum length of six inches (15 centimeters). However, specimens collected in Texas have measured more than this, as the one featured in this report confirms. This species of centipede has powerful jaws--actually modified front legs--and its venom is known to produce significant pain and swelling; this guy should, therefore, be considered dangerous. It has simple eyes that it rarely uses, that probably provide no assistance in hunting, and that are not necessary for the animal to respond to light (when the eyes are covered with opaque paint, no difference is noted in its immediate negative response to bright light stimulus).

I hope this can help with your understanding. =)