it's called an exoskeleton. it protects the spider from harm. as a spider grows, its exoskeleton will become to small for it, and it'll shed the exoskeleton. this process is called molting. you know when a spider (especially a tarantula, where it's very pronounced) is about to molt because the abdomen will start to glaze over. if it's a hairy spider, it'll look like it's balding on its abdomen.
exoskeleton
whoever wrote this its really very good
All Spiders have a body made of two parts that are the abdomen and the cephalothorax. Other things all spiders have in common include that they have eight jointed legs, they are carnivorous, and they can all produce silk.
They have 8 legs, about 4-9 eyes and 1 jaw.
spiders have a skeleton located on the outside of the body
spider bodies are made of cell. the end
claws
Spiders have claws at the end of each leg.
a claw
Spiders have claws at the end of each leg.
a spider has eight legs
Of course any spider with eight legs has seven. There is no spider that naturally has only seven. A spider can lose a leg from injury. As the spider molts it gradually grows back the lost leg.
a big spider that has a leg span of 1 foot
They have seven segments on each leg, they do not have knees like humans do
spider
2 - One at the end of each leg.
Cellar spider
If a spiders leg comes off it will heal and grow a new leg.
Depends on the spider.