Explain the aranea of arthropoda which belongs to non chordate phyla?

The aranea is also known as spider. It occurs in the house and garden. It is carnivorous and feeds on insects. It has many forms and has a distinct male and female sex which is referred as a sexual dimorphism. Their body is divided into the cephalothorax and abdomen. The cephalothorax is also known as the anterior part and the abdomen is also known as the posterior part. The cephalothorax has 12 appendages. The abdomen is without segments and telson. It has 6 spinning organs which give rise to the thread. The book lungs and trachea are the main respiratory organs.
The insect and spider look similar but they have a lot of differences between them. The insect has compound eyes and their body is divided into head, thorax and abdomen. They have wings and 3 pairs of legs. On the other hand spiders have simple eyes and their body is divided into cephalothorax and abdomen. They have no wings and have 4 pairs of legs. The insect have antennae and have no spinnerets and their thorax and abdomen are segmented. The spiders have no antennae but have spinnerets and their thorax and abdomen are non segmented. The spiders have two mouth parts and insects have six mouth parts.