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Word Count: 553
Spiders are very unique animals that are a common species of arthropods They have eight walking legs appendages that carry and inject poison and a second pair of appendages that for males contains specialized reproductive organs Most spiders live on land but a few species live underwater by trapping air in bubbles and by taking the bubble with them underwater Most spiders are no bigger that one centimeter in length but the biggest has a body that is nine centimeters long The spiders body is divided into two regions called the cephalothorax and the abdomen The cephalothorax is found at the head-end of the body while the abdomen forms the rest of the body These two parts do not go directly together but a pedicel which is a narrow stalk that provides flexibility separates them Every spider has two pairs of appendages with one pair containing two chelicerae and the other containing two pedipalpi The chelicerae are used as pincers to capture food and are used to inject the poison that a spider produces into the spiders prey The chelicerae have fangs connected to a poison gland that holds the spiders poison The pedipalpi are used to feel around and sense things and in male spiders have a palpal organ used in reproduction The abdomen contains the spinnerets that spin the silk into thread so it can be used to make webs allowing the spider to capture food Although some spiders that are larger do not need webs because they hunt for their own food The abdomen also contains the respiratory openings which spiders use to breathe by taking air into the book lungs To eat their food spiders secrete a digestive enzyme that liquefies the internal organs of a spiders prey After liquefying the internal organs of the prey the spider sucks out all of the fluid from inside the preys body Spiders feed on other animals and usually go about it by
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